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. Complete parts (a) and (b) below. Proctored Nonproctored mu mu 1 mu 2 n 33 32 x overbar 75.38 87.32 s 11.95 20.27 Question content area bottom Part 1 a. Use a 0.01 significance level to test the claim that students taking no