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A researcher compares the mean ratings from 35 Dee’s customers and 40 Tom’s customers. Which test type is appropriate?

H1: μ1 < μ2. What type of test is implied? Answer with left-tail, right-tail, or two-tail.

Which function is used for a two-sample variance test?

Why are there no small-sample proportion tests in Module 7?

A matched-pairs test has n = 14 pairs. What df is used?

A researcher claims that the proportion of female students with summer jobs is less than the proportion of male students with summer jobs. If females are Sample 1, which pair is correct?

In the summer-job study, the claim is that the proportion of male students with summer jobs is greater than the proportion of female students with summer jobs. The test statistic is TS = 5.611, and the right-tail critical value is 1.645. Is the claim supported? Answer “supported” or “not supported”.

Sample A has variance 12 and Sample B has variance 20. What is the F test statistic after correctly labeling Sample 1?

A two-sample mean test has n1 = 30 and n2 = 100. Which Excel function is used to find the critical value?

A two-tail proportion test has critical values ±2.326 and TS = 2.800. Decision: ______. Answer “reject H0” or “fail to reject H0”.