equal to 70 points. We claim they are incorrect, to test to see average sc improvement is different than 70. We randomly sample students for their average improvement. The data we collected are below. GRE scores are known to be normally distributed. Points 60.9 72.4 74 54.3 57.2 61.2 70.8 65.4 63.1 67.4 73.7 Evaluate the company's claim using a hypothesis test. You wish to test the following claim (H) at a significance level of a = 0.05. (a) Write the hypothesis for the test. O Ho: H = 70 Ha: 70 O Ho: = 70 Ha: 70 O Ho: H = 65.491 Ha: 65.491 O Ho: U = 65.491 Ha: 65.491