A simple random sample of front-seat occupants involved in car crashes is obtained. Among2769 occupants not wearing seat belts, 29 were killed. Among 7873 occupants wearing seat belts,11 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 thenull and alternative hypotheses for the hypothesis test?O A. Ho: P₁ P2H₁: P₁ = P2D. Ho: P₁ P2H₁: P₁ P2Identify the test statistic.Z=(Round to two decimal places as needed.)Identify the P-value.P-value =(Round to three decimal places as needed.)What is the conclusion based on the hypothesis test?B. Ho: P₁ = P2H₁: P₁ P2OE. Ho: P₁H₁: P₁The P-value isthe significance level of α = 0.05, sofatality rate is higher for those not wearing seat belts.P2P2the null hypothesis. ThereC. Ho: P₁ P2H₁: P₁P2OF. Ho: P₁P2H₁: P₁ P2sufficient evidence to support the claim that the b. Test the claim by constructing an appropriate confidence interval.The appropriate confidence interval is(Round to three decimal places as needed.)What is the conclusion based on the confidence interval?Because the confidence interval limits(P₁-P₂)<0, it appears that the two fatality rates arevalues, it appears that the fatality rate isc. What do the results suggest about the effectiveness of seat belts?for those not wearing seat belts.Because the confidence interval limits includeO A. The results suggest that the use of seat belts is associated with higher fatality rates than not using seat belts.B. The results suggest that the use of seat belts is associated with the same fatality rates as not using seat belts.C. The results suggest that the use of seat belts is associated with lower fatality rates than not using seat belts.D. The results are inconclusive.

The question is about hypo. testing and confidence interval Given : Total no. occupants not wearing…

A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2769 occupants not wearing seat belts, 29 were killed. Among 7873 occupants wearing seat belts, 11 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 simple random sample of front-seat occupants involved in car crashes is obtained. Among 2769 occupants not wearing seat belts, 29 were killed. Among 7873 occupants wearing seat belts, 11 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.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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