A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2769 occupants not wearing seat belts, 28 were killed. Among 7887 occupants wearing seatbelts, 14 were killed. Use a 0.01 significance level to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below....P-value =(Round to three decimal places as needed.)What is the conclusion based on the hypothesis test?The P-value isV the significance level of a = 0.01, soV the null hypothesis. ThereV sufficient evidence to support the claim that the fatality rate is higher forthose not wearing seat belts.b. Test the claim by constructing an appropriate confidence interval.The appropriate confidence interval is < (P, - P2) A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2769 occupants not wearing seat belts, 28 were killed. Among 7887 occupants wearing seatbelts, 14 were killed. Use a 0.01 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 alternativehypotheses for the hypothesis test?O A. Ho: P1 #P2H:Pq =P2O B. Ho: P1 SP2H: P1 #P2OC. Ho: P1 = P2H: 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?V the null hypothesis. ThereV sufficient evidence to support the claim that the fatality rate is higher forThe P-value isV the significance level of a = 0.01, sothose not wearing seat belts.b. Test the claim by constructing an appropriate confidence interval.

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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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