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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”.

Sample 1: x̄1 = 12.4, s1 = 2.0, n1 = 64. Sample 2: x̄2 = 11.6, s2 = 2.4, n2 = 81. Compute TS. Round to 3 decimals.

Module 7 states that two independent samples should have a relationship, effect, or influence on each other.

The sample mean of the paired differences, as used in the TS formula, is written as ______.

A left-tail two-sample mean test has critical value -1.311 and TS = -2.363. What is the decision?

The claim is H1, and the decision is reject H0. The claim is ______. Answer “supported” or “not supported”.