QNT 565 Final Exam Solutions on Studentehelp

QNT 565 Final Exam

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A statistical consultant was retained by a linen supplier to analyze a survey of hospital purchasing managers. After looking at the data, she realized that the survey had missed several key geographical areas and included some that were outside the targeted region. Some survey questions were ambiguous; some respondents failed to answer all of the questions or gave silly replies. One manager said he worked 40 hours a day. Of the 1,000 surveys mailed only 80% were returned.

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What ethical risks are involved in observation research? Explain the risks associated with the use of unobstructive measures?

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Cooper and Schindler (2010) identify four different measurement scales. These scales are used to categorize different types of variables. List and briefly discuss each type of measurement scale.

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Differentiate between measure of central tendency and measures of dispersion. When is it most appropriate to use each one?

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What is an independent (nonrelated) sample? What is a related (dependent) sample? When should researchers use different hypothesis tests for independent and related samples? Is one type of sample preferable over the other?

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What is an "executive summary" and what is its purpose?

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