A local politician claims that the percentage of residents over the age of 25 who have bachelor's degrees is not 50%. At the 0.02 significance level, test her claim. a.) The null and alternative hypothesis would be: Ho:p - 0.5 Ho:p = 0.5 Ho:p = 0.5 Ho:p = 0.5 Ho: / = 0.5 Ho: / = 0.5 Ha: p + 0.5 Ha:/ 0.5 Ha:p 0.5 b.) The test is: left-tailed right-tailed two-tailed Based on a sample of 70 local residents over the age of 25, 52% possessed a bachelor's degree c.) This excercise is a hypothesis test for the... Mean with the population standard deviation unknown using the t-test statistic O Proportion using the t-test statistic Proportion using the Z-test statistic O Mean with the population standard deviation unknown using the Z-test statistic Mean with the population standard deviation known using the Z-test statistic O Mean with the poulation standard deviation known using the t-test statistic d.) The test statistic is: (to 2 decimals) e.) At a = 0.02, the critical value is: (to 3 decimals) f.) Based on this we: O Fail to reject the null hypothesis. There is NOT enough evidence to support the claim of the politician that the percentage of residents o of 25 who