QNT 561 Week 1 DQ 1
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How may variance and standard deviation be applied to a real-world business-related problem? Provide a specific application in which these measures are useful.
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QNT 561 Week 1 DQ 2
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When would you use Chebyshev’s theorem and the empirical rule in business? How are they calculated? Provide one real-life example that requires Chebyshev’s theorem and one that requires the empirical rule.
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QNT 561 Week 2 DQ 1
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What are some examples of operational definitions in research design within your profession? For example, in the education field, graduation rate and retention rate are important operational definitions to measure progress of students. Likewise other professions have common metrics and definitions. Identify some metrics and operational definitions from your own career or a profession that you know well. Tell us why you think it is important!
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QNT 561 Week 2 DQ 2
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What is the purpose of sampling? What are some concerns and dangers of sampling? How important is the sample design to data validity? Explain. Provide an example where a sample might misrepresent data validity. For example, reflect on the current political campaign and the pollsters!...