A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples ar

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A Study Was Done On Proctored And Nonproctored Tests The Results Are Shown In The Table Assume That The Two Samples Ar 1 (183.91 KiB) Viewed 23 times

A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Proctored Nonpructores H1 H2 34 31 75.11 83.06 11.05 18.36 X Use a 0.05 significance level to test the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. What are the null and alternative hypotheses? OA. HO H1 =12 H:H * H2 OB. Ho H*12 HH142 C. Ho 41 42 H1 H2 OD. H: H1 =12 HVV2 The test statistic, t, is (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion for the test. O A. Fail to reject Ho. There is not sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. O B. Fail to reject Hy. There is sufficient evidence support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. OC. Reject Hy. There is not sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. OD. Reject Hy. There is sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests.