completed the test. 1. A statistics professor believes that students who have had statistics before have higher test scores than students who have not had statistics before. A random sample of her students shows the following scores on Test 1. Had stats 79 91 92 95 68 98 88 80 84 79 before Not had stats 77 89 83 88 59 86 89 95 96 90 75 before At the .05 level of significance, is the professor's claim supported? 2. A random sample of 12 males aged 12 - 16 was asked to state their height. Then each man's height was measured. The data is shown below. At the .02 level, does the data suggest that there is a difference between reported height and measured height? Reported 68 71 63 70 71 60 65 64 54 63 66 72 height Measured 167.9 69.9 64.9 68.3 70.3 60.6 64.5 67 55.6 74.2 65 70.8 height