You Work in a Data Analyst Unit for a Large

question 3

Multiple Choice

You work in a data analyst unit for a large fast food restaurant chain, planning a customer survey and a colleague informs you that a 95% confidence interval has a 95% probability of containing a population parameter. Because of this, she insists that a survey distributed at one restaurant will provide significant results. Do you agree with her?

• A) No, because 95% probability is a long-run probability requiring that multiple tests to be done
• B) Yes, because 95% probability is the standard level for significance testing
• C) No, because 95% confidence interval requires that multiple tests to be done
• D) Yes, because 95% probability is a short-run probability requiring that only one test be done

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