A local politician claims that the percentage of residents over the age of 25 who have bachelor's degrees is not 90%. At the 0.04 significance level, test her claim. a.) The null and alternative hypothesis would be: H0:μ=0.90 Ha:μ<0.90 H0:μ=0.90 Ha:μ≠0.90 H0:μ=0.90 Ha:μ>0.90 H0:p=0.90 Ha:p<0.90 H0:p=0.90 Ha:p>0.90 H0:p=0.90 Ha:p≠0.90 b.) The test is: left-tailed two-tailed right-tailed Based on a sample of 65 local residents over the age of 25, 97% possessed a bachelor's degree c.) This excercise is a hypothesis test for the... Mean with the population standard deviation known using the t-test statistic. Proportion using the Z-test statistic. Mean with the population standard deviation unknown using the t-test statistic. Mean with the population standard deviation known using the Z-test statistic. Mean with the population standard deviation unknown using the Z-test statistic. Proportion using the t-test statistic. d.) The test statistic is: (Round to 2 decimal places) e.) At α=0.04, the critical value is:± (Round to 3 decimal places) f.) At a 0.04 significance level, we...