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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 H2 simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are n 33 30 equal. Complete parts (a) and (b) below. Use a 0.01 significance level for both parts. X 76.64 87.22 S 10.39 19.24 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? O A. HO: HIS H2 O B. HO: H1> H2 H1 : H 1 > H 2 H1 : HIS H2 OC. Ho: H12 H2 OD. HO: H1 = H2 Hy: Hy