QUESTION 16 According to a recently published article, the human normal body temperature may be lower than 98.6 degrees. Researchers sampled 12 adults from hospital and recorded their temperatures in Fahrenheit as: 96.6; 97 5; 98.9; 96.4; 98.1; 98.9; 97.6; 97.8; 98.1; 97.9; 96.7; 98.6 At an alpha level set to 0.05, is there evidence to support the traditional belief that the average body temperature is 98.6 degrees? a. Since p is larger than 0.05, we fail to reject the null hypothesis. O b. Since p is larger than 0.05, we reject the null hypothesis. c. Since p is smaller than 0.05, we reject the null hypothesis. d. Since p is smaller than 0.05, we fail to reject the null hypothesis.What are the null and alternate hypothesis for a left-tailed test; right-tailed test; two-tailed test? O a. Left-tailed: Ho = m, H, ' m; right-tailed: Ho = m, H, m Left-tailed: Ho m; right-tailed: Ho > m, H- m; two-tailed: Ho = m, H, ' m OC. Left-tailed: Ho 1 m, H, m; two-tailed: Hom, H1 =m O'd.QUESTION 17 From a large population-level study, we have the following information. Of 124 whites, the mean life span was 45.3 years with a standard deviation of 12.7 years. Of the 82 nonwhites, the mean life span was 34.1 years with a standard deviation of 15.6 years. Conduct a hypothesis test to see if the mean life spans in the county were the same for whites and nonwhites. Calculate the test statistic and p-value. t = 5.42, p = 0.00000023 Oa. t = 3.75, p = 0.00090005 LOb t = 1.87, p = 0.00000006 OC O d =2.89, p = 0.00000013