A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2762 occupants not wearing seat belts, 27 were killed. Among 7746 occupants wearing seat belts, 12 were...

Identify test statistic

Identify p-value

construct the 90​% confidence interval for p1−p2

Extracted text: A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2762 occupants not wearing seat belts, 27 were killed. Among 7746 occupants wearing seat belts, 12 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample of occupants wearing seat belts. What are the null and alternative hypotheses for the hypothesis test? O C. Ho: P1 = P2 H1: P, # P2 B. Ho: P1 = P2 O A. Ho: P1 2P2 H4: P1 # P2 H,: P1 > P2 O F. Ho: P1 # P2 H1: P1 = P2 O E. Ho: P1 = P2 O D. Ho: P1 sP2 H1: P1 P2 H1: P1