0 Question 14 v A random sample of 34 exam scores yields a? = 71.4 and 3 = 8.7. At or = 0.01, test the claim that the standard deviation of test scores is not 10.5. 1. The alternate hypothesis is Ha: -:::::::- 0'2 a 10.5 -:::::::- 0'2 at! 8.7 '13:? 0' # 10.5 '13:? 0' % 8.7 2. This is a '33:? two'iii' right left tailed test with d.f. = 3a. The STS [to 2 decimals] is x2 = 3b. The P-value {to 3 decimals) is: 4a. At 0: = 0.01, the decision is: '3' Reject Ho 0 Accept Ho 0 Do not reject Ho 0 Accept Ha 4b. The conclusion is: ""3 There is insufficient evidence to support the claim that the standard deviation of test scores is not 10.5 ""13? There is sufficient evidence to support the claim that the standard deviation of test scores is not 10.5 ""3 There is sufficient evidence to reject the claim that the standard deviation of test scores is not 105 "'3' There is insufficient evidence to reject the claim that the standard deviation of test scores is not 10.5