Instructor-created question Question Help Proctored Nonproctored A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent H H2 simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are n 31 32 equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. 75.36 85.32 S 10.92 18.19 a. 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: M12H2 OB. Ho: H1 = P2 OC. HO: HIS H2 OD. HO: H1 > H2 H1: 19 > H2 HiHis H 2 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. Reject Ho. There is sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. O C. Fail to reject Ho. There is sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. O D. 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