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A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2813 occupants not wearing seat belts, 29 were killed. Among 7692 occupants wearing seat belts, 10 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 alternative hypotheses for the hypothesis test? A. Ho: P1 P2 H₁: P1 P2 D. Ho: P₁ SP2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P1 P2 H₁: P1 P2 E. Ho P1 P2 H₁: P1 P2 C. Ho: P₁ #P2 H₁: P1 P2 OF. Ho P1 P2 H₁: P1 P2

A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2813 occupants not wearing seat belts, 29 were killed. Among 7692 occupants wearing seat belts, 10 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 alternative hypotheses for the hypothesis test? A. Ho: P1 P2 H₁: P1 P2 D. Ho: P₁ SP2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P1 P2 H₁: P1 P2 E. Ho P1 P2 H₁: P1 P2 C. Ho: P₁ #P2 H₁: P1 P2 OF. Ho P1 P2 H₁: P1 P2

MATLAB: An Introduction with Applications
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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Need help finding test statistic, p-value, and confidence interval, please. Thank you!

A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2813 occupants not wearing seat belts, 29 were killed. Among 7692 occupants wearing seat belts, 10 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 alternative hypotheses for the hypothesis test? A. Ho: P1 P2 H₁: P1 P2 D. Ho: P₁ SP2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P1 P2 H₁: P1 P2 E. Ho P1 P2 H₁: P1 P2 C. Ho: P₁ #P2 H₁: P1 P2 OF. Ho P1 P2 H₁: P1 P2
Transcribed Image Text:A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2813 occupants not wearing seat belts, 29 were killed. Among 7692 occupants wearing seat belts, 10 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 alternative hypotheses for the hypothesis test? A. Ho: P1 P2 H₁: P1 P2 D. Ho: P₁ SP2 H₁: P1 P2 Identify the test statistic. z= (Round to two decimal places as needed.) B. Ho: P1 P2 H₁: P1 P2 E. Ho P1 P2 H₁: P1 P2 C. Ho: P₁ #P2 H₁: P1 P2 OF. Ho P1 P2 H₁: P1 P2
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