A simple random sample of front-seat occupants involved in car crashes is obtained. Among 28242824 occupants not wearing seat belts, 3939 were killed. Among 76977697 occupants wearing seat belts, 1717 were killed. Use a 0.050.05 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? A. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1less than<p 2p2 B. Upper H 0H0: p 1p1not equals≠p 2p2 Upper H 1H1: p 1p1equals=p 2p2 C. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1greater than>p 2p2 D. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1not equals≠p 2p2 E. Upper H 0H0: p 1p1greater than or equals≥p 2p2 Upper H 1H1: p 1p1not equals≠p 2p2 F. Upper H 0H0: p 1p1less than or equals≤p 2p2 Upper H 1H1: p 1p1not equals≠p 2
A simple random sample of front-seat occupants involved in car crashes is obtained. Among 28242824 occupants not wearing seat belts, 3939 were killed. Among 76977697 occupants wearing seat belts, 1717 were killed. Use a 0.050.05 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? A. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1less than<p 2p2 B. Upper H 0H0: p 1p1not equals≠p 2p2 Upper H 1H1: p 1p1equals=p 2p2 C. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1greater than>p 2p2 D. Upper H 0H0: p 1p1equals=p 2p2 Upper H 1H1: p 1p1not equals≠p 2p2 E. Upper H 0H0: p 1p1greater than or equals≥p 2p2 Upper H 1H1: p 1p1not equals≠p 2p2 F. Upper H 0H0: p 1p1less than or equals≤p 2p2 Upper H 1H1: p 1p1not equals≠p 2
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
A simple random sample of front-seat occupants involved in car crashes is obtained. Among
28242824
occupants not wearing seat belts,
3939
were killed. Among
76977697
occupants wearing seat belts,
1717
were killed. Use a
0.050.05
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?
Upper H 0H0:
p 1p1equals=p 2p2
Upper H 1H1:
p 1p1less than<p 2p2
Upper H 0H0:
p 1p1not equals≠p 2p2
Upper H 1H1:
p 1p1equals=p 2p2
Upper H 0H0:
p 1p1equals=p 2p2
Upper H 1H1:
p 1p1greater than>p 2p2
Upper H 0H0:
p 1p1equals=p 2p2
Upper H 1H1:
p 1p1not equals≠p 2p2
Upper H 0H0:
p 1p1greater than or equals≥p 2p2
Upper H 1H1:
p 1p1not equals≠p 2p2
Upper H 0H0:
p 1p1less than or equals≤p 2p2
Upper H 1H1:
p 1p1not equals≠p 2
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