prepare and submit a paper on critique of the opec website.

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Your assignment is to prepare and submit a paper on critique of the opec website. Other countries later joined the organization, namely Qatar, Indonesia (withdraw on January 2009), Socialist Peoples Libyan Arab Jamahiriya, United Arab Emirates, Algeria, Nigeria, Ecuador (suspended its membership from December 1992 to October 2007), Angola and Gabon. Its main headquarters transferred from Geneva, Switzerland to Vienna, Austria on September 1, 1965 (Brief history par. 1). OPEC created its website to spread its advocacy and disseminate updated information on its activities and other relevant issues and concerns. OPEC rose to power when the balance shifted from the oil companies to oil producing countries following Venezuelan policy of a 50-50 share in profits that the oil companies had to concede to and more terms they later demanded (“History” 1).

OPEC’s main webpage can be found at http://www.opec.org/home/ (OPEC n. pag.). In the body of the webpage, a title is located at the top. This contains the name of the organization. At the top of the title, a box is dynamic links that move from right to left. The links refer to various articles on OPEC, oil price, seminar, etc. In line with the title box on the right side are two levels of the navigation bar. The first level at the top contains contact, feedback, vacancies, and warning. The second level below refers to home, about us, library and news.

Below the title box at the left, placed vertically is another set of the navigation bar (side navigation) with links for search, advanced search, press room, multimedia, publications, organigram, meetings, announcements, login, links, and graphs. Set below this vertical placement is a live webcast (rich media live streaming for official meetings of the organization), followed by Monthly Oil Market Report Podcast, then the banner for World Oil Outlook, and banner for Annual Statistical Bulletin 2007.

Your task is to create a portfolio of your work to showcase your progression through the course. This includes a creative element, meaning you will determine the best format to showcase your work.

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Using practice assignments（the file i uploaded below, the order is 1,2,3,4), you will create a collection of your individual work to share with the class (or chosen audience). Your task is to create a portfolio of your work to showcase your progression through the course. This includes a creative element, meaning you will determine the best format to showcase your work. This might include a professional report, an Op-Ed, a visualization dashboard, a website, blog, video presentation or dedicated social media page or group. Length guidelines will depend on mode of delivery.

I choose Report format

Write 6 pages with APA style on A Theoretical Framework.

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Write 6 pages with APA style on A Theoretical Framework. The weaknesses of a theoretical framework that is built on a universal notion of gender include gender discrimination. In this case, if a specific gender, male or female, is universality viewed as weak, for example, females, such a gender will be discriminated universally in every society because such a notion is usually believed to be a fact. The other weakness of a theoretical framework that is built around the idea of gender is that it hinders self-expression and individual strengths. In this case, individuals may fear to come out publicly and express themselves because of fear of the way the society might perceive them.

For example, the African woman is believed to be inferior to the man and is only supposed to care for the family. Such a woman may hardly express herself, and interests in the society, especially political ambitions. In Africa, women rarely stand out in the community for political or educational reasons because they can rarely succeed as almost everyone believes that that is not their role because of gender. Domestic labour among girl children has also hurt school performance among girls. They are expected to help their mothers as they learn the parts of motherhood instead of fully concentrating on education.

Kinship and the Understanding of Gender

Kinship is the study of links between different people that is based on descent, adoption or marriage (Vigdis, n. d.). Kinship has been a domain of definition in anthropological investigations since it was incepted in the late 19th century. Significant paradigmatic changes in anthropology like feminism, cultural turn and political economy made Kinship to undergo many restructuring phases.&nbsp. Intricate complexities in the system of Kinship were considered necessary in the understanding of societies that were not from the west. Anthropological studies of Kinship have been used to help in the sense of gender as well as new forms of family, genetic development, lesbian and gay movements.

Because of the situations presented to them by such a framework, members of the same gender learn to love and help each other in society. For example, men may learn to work together and help each other as they strive for financial resources to support their families.

Write a paper on information security fundamentals

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I need some assistance with these assignment. information security fundamentals Thank you in advance for the help! Information Security Fundamentals permits future security experts to acquire a solid knowledge of the fundamentals of this area, as well as the entire variety of issues, which practitioners must tackle. This volume allows learners to comprehend the key elements, which comprise an effective information security program and, in the long run, relate these concepts to their individual efforts (Peltier, Peltier & Blackley, 2005). The volume assesses the fundamentals of computer security, worker responsibilities and roles together with common threats involved in this field. It assesses the need for policies and procedures, management controls, plus risk analysis, and presents an all-inclusive list of objectives and tasks that frame a typical information security program. The book talks about organization-wide regulations along with their documentation, and business and legal requirements. It discusses policy format, centering on worldwide, topic-specific, as well as application-specific regulations. After a review of asset organization, the volume studies access control, the elements of physical security, as well as the processes and foundations of risk management and risk analysis. Information Security Fundamentals ends by discussing business continuity planning comprising of recovery strategies, preventive controls and methods of conducting a business impact analysis. This paper will present a concept review of this volume and explain the relevant conceptual material (theories, concepts) from the course.

The book mainly centers on seven concepts: more than just computer security, elements of information protection, roles and responsibilities, common threats, policies and procedures, risk management and typical information protection program (Peltier, Peltier & Blackley, 2005).

Information protection must endorse the mission of the enterprise or the business objectives.

Compose a 2500 words assignment on arsenic in groundwater in eastern new England.

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Compose a 2500 words assignment on arsenic in groundwater in eastern new england. Needs to be plagiarism free! Arsenic concentrations in this region have been a subject of study for many researchers, probably due to the possible implications associated with arsenic-concentrated groundwater (USGS 2). This paper will examine the background of this problem while considering previous studies and other sources. An analysis of the possible reasons for the increasing arsenic concentration in eastern New England will be done. This includes anthropogenic and natural sources, which will be an essential part of this analysis. Human health implications have been a critical concern about arsenic concentrations, making it a necessary point of focus in this study.

&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp. Arsenic is a widespread element traced in groundwater in varying concentrations in the United States (Welch 589). As a result, drinking water in the region contains a substantial concentration of this element, which has raised serious health concerns. This has called for the regulation of drinking water by the Federal and State standards that control public water systems (U.S. Environmental Protection Agency 1). The U.S. Environmental Protection Agency (USEPA) has ruled that the measure of arsenic concentration should be between 50 and 10 micrograms per liter. However, moderate to high (10-50 micrograms) arsenic concentrations have been present in groundwater in eastern New England. Moreover, a significant number of wells are above-average concentrations in New England (Loiselle 5).

&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp.&nbsp. Many studies on arsenic concentrations in groundwater have been unable to establish arsenic sources. nevertheless, evidence shows that arsenic in New England predominantly originates from natural sources, especially various minerals and rocks found in the region (Reeve 12). However, other studies have linked arsenic concentrations in New England with geologic sources (Hinkle 433). Some studies have associated arsenic concentrations in New England with an anthropogenic source such as treated lumber, the use of pesticides, and wastes from manufacturing industries, which contaminate groundwater (D’Angelo 3).

Write an article on Blooms Taxonomy of Learning.

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I will pay for the following article Blooms Taxonomy of Learning. The work is to be 5 pages with three to five sources, with in-text citations and a reference page. &nbsp.&nbsp.&nbsp.&nbsp. Of the three, it is the first domain, the Cognitive Domain, which created a global impact for it became a sort of syllabus, or lore for education, and has been translated in more than twenty languages worldwide.&nbsp. Through the years, Bloom’s taxonomy has been met with countless criticisms. Still, educators and intellectuals alike cannot ignore the fact that it has set forth a valid, tested, and acceptable sets of objectives to guide them on how learning should progress and evolve.

Bloom came out with a publication of his second domain, the AFFECTIVE&nbsp. DOMAIN later on in 1964, (with Krathwhol and Masia) while the third one, the PSYCHOMOTOR DOMAIN, was tackled in detail by other authors, notably RH Dave (1967/70), EJ Simpson (1966/72), and AJ Harrow (1972), which explains the variation in details in the different representations of the Bloom taxonomy (Chapman, Alex). &nbsp.

&nbsp.For purposes of brevity, it is the first domain, the COGNITIVE DOMAIN, which shall be tackled here vis-a-vis a senior level college research paper.

Bloom’s taxonomy of cognitive domain consists of six tiers, or steps, like a stairway, in the sense that you have to pass thru the first step before you can proceed to the next, a linear movement, until you reach the pinnacle.&nbsp. The first three tiers are what is known as lower-level thinking, and these are Knowledge, Comprehension, and Application.&nbsp. It is imperative that one has to finish each level one at a time and finish all three before he can proceed further to the next three tiers, as these last three are more complicated and will require more in-depth intellectual approaches. These last three are considered higher-level thinking, and these are Analysis, Synthesis, and Evaluation.

Applying Bloom’s taxonomy in the making of a senior-level college research paper, the six levels of Bloom’s model are utilized, in the exact sequence or chronology of the taxonomy:

Knowledge – here, the student collects all existing data, information and concepts,

and recognizes what he needs so he may select, list, enumerate, arrange, define or state them thoroughly in his paper.&nbsp. In this tier, the data collected must be complete and accurate as it can be.&nbsp. This is where the concentration of the research is the heaviest, as plenty of time and resources are needed for data gathering.

Comprehension – after the collection of required and needed data, the student should take time to digest the gist of data compiled so that he may comprehend or understand them completely. &nbsp.

Create a thesis and an outline on Management and Technology within a Law Enforcement Agency.

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I need help creating a thesis and an outline on Management and Technology within a Law Enforcement Agency. Prepare this assignment according to the guidelines found in the APA Style Guide. An abstract is required. Contemporary law enforcement agencies employ nearly all of these solutions and strategies in their knowledge management models. Law enforcement agencies meet with police units, correctional facility training organizations, intelligence agencies, and even private police force and military centers the broker knowledge (Denning, Bennett, Mazerolle, and Stocks, 2009). These meetings may happen virtually or only attended by the leaders of the respective agencies. Accordingly, these events allow their organizations to learn about new toolkits, groups of practice, intranet tools, and various ways to access comprehensive research databanks.

The focus of this level of management for law enforcement agencies is on both the agency and staff members’ needs for knowledge. In effect, this level enhances the staff members’ and the agency’s performance by acquiring knowledge from the most recent study findings and investigation reports (Gottschalk, 2007). Internal knowledge management is the most widely used level of knowledge management outside the development sector and possibly in sectors that make up the strongest abstract foundation of practical work in knowledge management practice. A significant part of knowledge management in law enforcement concerns the transfer of knowledge and the development of viable local volume instead of simply providing a quality commodity or service. For policing services, this level of knowledge management may appear slightly shortsighted to concentrate merely on empowering law enforcement agents with the knowledge they require (Gultekin, 2009). In addition, it may also seem inappropriate to accumulate tremendous amounts of knowledge for their law enforcement agency alone because the agency acquires a lot of development knowledge from publicly financed operations.

Similar to any other public or private entity, efficient knowledge management is a paramount matter in law enforcement. Law enforcement is an integrally knowledge-centric practice. As a result, the proficient and active utilization of knowledge is essential to improving a law enforcement agency’s performance (Gultekin, 2009). The utilization of knowledge relies not merely on properly set up IT tools but proficiently overseeing the law enforcement agency’s assets as well.

Linguistic and Cultural Issues in Translation: Differences between English and Chinese.

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I will pay for the following article Linguistic and Cultural Issues in Translation: Differences between English and Chinese. The work is to be 5 pages with three to five sources, with in-text citations and a reference page. The paper will discuss the linguistic and sociocultural issues in translating texts across languages with specific reference to English and Chinese in terms of language and culture.

Free of forced migration and increased globalization has increased the need for people to communicate in multiple languages. This has created the need for language translations. Various issues arise in the process of translating literary texts. On a global scale, English is regarded as a working language for many people. Bush (1998:127) defines translation as an original subjective activity at the center of a comprehensive social and cultural practice network.

As cited by Moll and González (2008), pursuing a second language: assists the people in utilise their first language with greater purpose and precision. knowledge of a second language helps the students to be interconnected with the world. in the global economy, a second language opens the door to job opportunities. finally, language knowledge is vital to humanistic inquiry into the histories and cultures of the world.

Mossop et al. (2005) argue that translational language arises from a certain form of communication. Munday (2009) notes that language and language varieties are closely linked to regional and personal identity construction issues. During the translation process, it has been found that interaction between two or more cultures leads to the creation of a hybrid text. The text that appears in the original text appears to adopt some of the features in the source culture’s text. The article read was originally in Chinese, but the English version appeared to have adopted Chinese culture features.

The concept of culture is very crucial in translation. Culture relates to intellectual development, socially conditioned aspects of human life such as religion, customs, education, political institutions, and history.

As noted by New Mark (1998:201), the literary English language that was used to translate the document remained aesthetically pleasing, and there was a constant tension between aesthetic and informative functions of language.

Prospective studies on nutrition often require subjects to keep detailed daily dietary logs. In contrast, retrospective studies often rely on recall. Which method (dietary logs or retrospective recall) do you believe is more likely to achieve accurate results? Explain your response.

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This quiz will cover the material from Chapters 1–5 (Modules One, Two, and Three) in Basic Biostatistics: Statistics for Public Health Practice. The quiz will focus on solving and analyzing problems.

 

Answer the following questions covering materials from previous chapters in your textbook. Each question is worth 3.5 points.

 

  1. Prospective studies on nutrition often require subjects to keep detailed daily dietary logs. In contrast, retrospective studies often rely on recall. Which method (dietary logs or retrospective recall) do you believe is more likely to achieve accurate results? Explain your response.

 

 

  1. We often have a choice of whether to record a given variable on either a quantitative or a categorical scale. How does one measure age quantitatively? Provide an example by which age can be measured categorically.

 

 

  1. Telephone surveys may use a telephone directory to identify individuals for study. Speculate on the type of household that would be undercovered by using this sampling frame.

 

 

  1. Could the number “0000” appear in a table of random digits? If so, how likely is this?

 

 

  1. Body weights of 18 diabetics expressed as a percentage of ideal (defined as body weight divided by ideal body weight x 100) are listed: {107, 119, 99, 114, 120, 104, 88, 114, 124, 116, 101, 121, 152, 100, 125, 114, 95, 117}. Construct a stem-and-leaf plot of these data and interpret your findings.

 

 

  1. Name three measures of central location.

 

 

  1. To assess the air quality in a surgical suite, the presence of colony-forming spores per cubic meter of air is measured on three successive days. The results are as follows: {12, 24, 30}. Calculate the mean and standard deviation for these data.

 

 

  1. In a lottery game, a person must select 5 numbers from a total of 40. Tracy has chosen 7, 8, 9, 10, 11. Jaime has chosen 39, 17, 37, 5, 28. Who has a greater chance of winning?

 

 

  1. In a box, there are 8 orange, 7 blue, and 6 red balls. One ball is selected randomly. What is the probability that it is neither orange nor red?

 

 

  1. A __________ is a numerical quantity that takes on different values depending on chance. There are two types of random variables. __________ form a countable set of possible values. __________ form an unbroken continuum of possible values.

 

 

 Assignment Two

 

 

Instructions
This quiz will cover material from Chapters 6–9 (Modules Three and Four) in Basic Biostatistics: Statistics for Public Health Practice.

 

Answer the following questions covering materials from previous chapters in your textbook. Each question is worth 3.5 points.

 

  1. A telephone survey uses a random digit dialing machine to call subjects. The random digit dialing machine is expected to reach a live person 15% of the time. In eight attempts, what is the probability of achieving exactly two successful calls?

 

 

  1. The prevalence of a trait is 76.8%.

 

  1. In a simple random sample of n = 5, how many individuals are expected to exhibit this characteristic?
  2. How many would you expect to see with this characteristic in a simple random sample of n = 10?
  3. What is the probability of seeing nine or more individuals with this characteristic in a simple random sample of n = 10?

 

  1. Linda hears a story on National Public Radio stating that one in six eggs in the United States are contaminated with Salmonella. If Salmonella contamination occurs independently within and between egg cartons and Linda makes a three egg omelet, what is the probability that her omelet will contain at least one Salmonella contaminated egg?

 

 

  1. Suppose that heights of 10-year old boys vary according to a Normal distribution with µ = 138 cm and σ = 7 cm.

 

  1. What proportion of this population is less than 150 cm tall?
  2. What proportion is less than 140 cm in height?
  3. What proportion is between 150 and 140 cm?

 

 

  1. The Wechsler Adult Intelligence Scale scores are calibrated to vary according to a normal distribution with µ = 100 and σ = 15. What Wechsler scores cover the middle 50% of the population? In other words, identify the 25th percentile and 75th percentile of the population.

 

 

  1. Suppose that scores on the biological sciences section of the Medical College Admissions Test (MCAT) are normally distributed with a mean of 9.2 and a standard deviation of 2.2. Successful applicants to become medical students had a mean score of 10.8 on this portion of the test. What percentage of applicants had a score of 10.8 or greater?

 

 

  1. A survey selects a simple random sample of n = 500 people from a town of 55,000. The sample shows a mean of 2.30 health problems per person (standard deviation = 1.65). Based on this information, say whether each of the following statements is true or false. Explain your reasoning in each instance.

 

  1. The standard deviation of the sample mean is 0.074.
  2. It is reasonable to assume that the number of health problems per person will vary according to a normal distribution.
  3. It is reasonable to assume that the sampling distribution of the mean will vary according to a normal distribution.

 

 

  1. Ten people are given a choice of two treatments. Let p represent the proportion of patients in the patient population who prefer treatment A. Among the 10 patients asked, 7 preferred method A. Assuming there is no preference in the patient population (i.e., p = 0.5), calculate P(X > 7).

 

 

  1. A simple random sample of 18 male students at a university has an average height of 70 inches. The average height of men in the general population is 69 inches. Assume that male height is approximately normally distributed with σ = 2.8 inches. Conduct a two-sided hypothesis test to determine whether the male students have heights that are significantly different than expected. Show all hypothesis testing steps.

 

 

  1. True or false? The p-value refers to the probability of the data or data more extreme assuming the null hypothesis.

 

 

Assignment Three

 

 

Instructions
This is an opportunity to demonstrate your understanding of the concepts practiced in Chapters 11 and 12.

 

 

Answer the following questions covering materials from previous chapters in your textbook. Each question is worth 3.5 points.

 

  1. A sample of 49 sudden infant death syndrome (SIDS) cases had a mean birth weight of 2998 g. Based on other births in the county, we will assume σ = 800 g. Calculate the 95% confidence interval for the mean birth weight of SIDS cases in the county. Interpret your results.

 

 

  1. A vaccine manufacturer analyzes a batch of product to check its titer. Immunologic analyses are imperfect, and repeated measurements on the same batch are expected to yield slightly different titers. Assume titer measurements vary according to a normal distribution with mean µ and σ = 0.070. Three measurements demonstrate titers of 7.40, 7.36 and 7.45. Calculate a 95% confidence interval for true concentration of the sample.

 

 

  1. True or false? A confidence interval for µ is 13 +

 

  1. The value 5 in this expression is the estimate’s standard error.
  2. The value 13 in this expression is the estimate’s margin of error.
  3. The value 5 in this expression is the estimate’s margin of error.

 

  1. The term critical value is often used to refer to the value of a test statistic that determines statistical significance at some fixed α level for a test. For example, +96 are the critical values for a two-tailed z-test at α = 0.05. In performing a t-test based on 21 observations, what are the critical values for a one-tailed test when α = 0.05? That is, what values of the tstat will give a one-sided p-value that is less than or equal to 0.05? What are the critical values for a two-tailed test at α = 0.05?

 

 

1. A simple random sample of 40 items resulted in a sample mean of 10. The population standard deviation is σ = 6. Round your answers to two decimal places. a.  What is the standard error of the mean, σx? b.  At 95% confidence, what is the margin of error?

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1. A simple random sample of 40 items resulted in a sample mean of 10. The population standard deviation is σ = 6. Round your answers to two decimal places.

a.  What is the standard error of the mean, σx?

b.  At 95% confidence, what is the margin of error?

 

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2. Business Week conducted a survey of graduates from 30 top MBA programs (Business Week, September 22, 2003). The survey found that the average annual salary for male and female graduates 10 years after graduation was $168,000 and $117,000, respectively. Assume the population standard deviation for the male graduates is $35,000, and for the female graduates it is $25,000.

When calculating values for z, round to two decimal places.

a.     What is the probability that a simple random sample of 40 male graduates will provide a sample mean within $10,000 of the population mean, $168,000 (to 4 decimals)?
b.    What is the probability that a simple random sample of 40 female graduates will provide a sample mean within $10,000 of the population mean, $117,000 (to 4 decimals)?
c.     In which of the preceding two cases, part (a) or part (b), do we have a higher probability of obtaining a sample estimate within $10,000 of the population mean?
– Select your answer – Part (a) because the population mean for males is higher Part (a) because the population standard deviation for males is higher Part (b) because the population mean for females is lower Part (b) because the population standard deviation for females is lower Item 3

d.    What is the probability that a simple random sample of 100 male graduates will provide a sample mean more than $4,000 below the population mean (to 4 decimals)?

 

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3. In a survey, the planning value for the population proportion is p* = 0.25. How large a sample should be taken to provide a 95% confidence interval with a margin of error of 0.06?

 

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4. The College Board reported the following mean scores for the three parts of the SAT (The World Almanac, 2009):

Excel File: data07-21.xls

Assume that the population standard deviation on each part of the test is σ = 100.

a.  What is the probability that a random sample of 90 test takers will provide a sample mean test score within 10 points of the population mean of 502 on the Critical Reading part of the test? Round your answer to four decimal places.

b.  What is the probability that a random sample of 90 test takers will provide a sample mean test score within 10 points of the population mean of 515 on the Mathematics part of the test? Round your answer to four decimal places.

Compare this probability to the value computed in part (a).
– Select your answer – Decrease Increase No change Item 3

c.  What is the probability that a random sample of 100 test takers will provide a sample mean test score within 10 of the population mean of 494 on the writing part of the test? Round your answer to three decimal places.

Comment on the differences between this probability and the values computed in parts (a) and (b).

The input in the box below will not be graded, but may be reviewed and considered by your instructor.

 

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5. The Pew Research Center Internet Project, conducted on the 25th anniversary of the Internet, involved a survey of 857 Internet users (Pew Research Center website, April 1, 2014). It provided a variety of statistics on Internet users. For instance, in 2014, 87% of American adults were Internet users. In 1995 only 14% of American adults used the Internet.

a.  The sample survey showed that 90% of respondents said the Internet has been a good thing for them personally. Develop a 95% confidence interval for the proportion of respondents who say the Internet has been a good thing for them personally (to 4 decimals).

95% Confidence Interval:  to

b.  The sample survey showed that 67% of Internet users said the Internet has generally strengthened their relationship with family and friends. Develop a 95% confidence interval for the proportion of respondents who say the Internet has strengthened their relationship with family and friends (to 4 decimals).

95% Confidence Interval:  to

c.  Fifty-six percent of Internet users have seen an online group come together to help a person or community solve a problem whereas only 25% have left an online group because of unpleasant interaction. Develop a 95% confidence interval for the proportion of Internet users who say online groups have helped solve a problem (to 4 decimals).

95% Confidence Interval:  to

d.  Compare the margin of error for the interval estimates in parts (a), (b), and (c). How is the margin of error related to sample proportion (to 2 decimals)?

The margin of error  – Select your answer – increases decreases Item 7  as p gets closer to  .

 

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6. A simple random sample of 10 items resulted in a sample mean of 40. The population standard deviation is σ = 20.

a.  Compute the 95% confidence interval for the population mean. Round your answers to one decimal place.
Enter your answer using parentheses and a comma, in the form (n1,n2). Do not use commas in your numerical answer (i.e. use 1200 instead of 1,200, etc.)

b.  Assume that the same sample mean was obtained from a sample of 100 items. Provide a 95% confidence interval for the population mean. Round your answers to two decimal places.

c.  What is the effect of a larger sample size on the interval estimate?

Larger sample provides a  – Select your answer – larger smaller Item 3  margin of error.

 

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7. The National Center for Education Statistics reported that 47% of college students work to pay for tuition and living expenses. Assume that a sample of 450 college students was used in the study.

a. Provide a 95% confidence interval for the population proportion of college students who work to pay for tuition and living expenses. (to 3 decimals)

Enter your answer using parentheses and a comma, in the form (n1,n2).

b. Provide a 99% confidence interval for the population proportion of college students who work to pay for tuition and living expenses. (to 3 decimals)

Enter your answer using parentheses and a comma, in the form (n1,n2).

c. What happens to the margin of error as the confidence is increased from 95% to 99%?

The margin of error becomes  – Select your answer – smaller larger Item 3

 

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8. People end up tossing 12% of what they buy at the grocery store (Reader’s Digest, March, 2009). Assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior.

Round your answers to four decimal places.

a.  Show the sampling distribution of p, the proportion of groceries thrown out by your sample respondents.

The distribution is– Select your answer – normal not normal Item 1
Mean =
 =

b.  What is the probability that your survey will provide a sample proportion within ±.03 of the population proportion?

c.  What is the probability that your survey will provide a sample proportion within ±.015 of the population proportion? In determining your answer, use the standard error found in part a. and the probability found using the tables in the text.

 

9. Three firms carry inventories that differ in size. Firm A’s inventory contains 2000 items, firm B’s inventory contains 5000 items, and firm C’s inventory contains 10,000 items. The population standard deviation for the cost of the items in each firm’s inventory is σ = 144.

A statistical consultant recommends that each firm take a sample of 50 items from its inventory to provide statistically valid estimates of the average cost per item. Employees of the small firm state that because it has the smallest population, it