Question

randomly selected people took an 1Q test A, and next day they took a very similar 1Q test B. Their scores are shown in the table beiow A BCDE FGHI Test A 117 108 93 89 128 98 76104 108 83 Test B 122 109 93 91 12799 76108 107 82 1. Consider (Test A- Test B). Use a 0.01 decimal places level to test the claim that people do bettar on the sacond test than they do on the frst. Round calculated answers to three (a) What test method should be used? A. Two Sample z CB. Matched Pairs C. Two Sample t (b) The null hypothesis is Har-O What is the atternate hypothesis? (c) The test statistic is (d) The p-value is e) Is there sufficient evidence to support the claim that people do better on the second test? А.Yes B. No 2. Construct a 99% confidence interval for the mean of the dfferences. Again, use (Test A-Test B).

Answer 1