MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A) Independence
Solve the problem.
21) Suppose a study was conducted to see whether there is an association between marital status and vehicle color.
The table below shows the results from the study. Assume all conditions for testing have been met.
Vehicle color
red
black/white/silver blue/green/other
Married
45
22
19
Unmarried
35
11
18
This was an observational study of randomly chosen vehicle owners. Test the hypothesis that marital status and
vehicle color are associated, using a signiticance level of 0.05. Choose the correct decision regarding the null
hypothesis and conclusion. Refer to the computer output below.
2-Test
X-1.754774169
p= 415868121I7
di-2
A) Reject the null hypothesis; marital status and vehicle color are not associated.
B) Fail to reject the null hypothesis, marital status and vehicle color are associated.
C) Reject the null hypothesis; marital status and vehicle color are associated.
D) Fail to reject the null hypothesis: marital status and vehicle color are not associated.
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Transcribed Image Text:A) Independence Solve the problem. 21) Suppose a study was conducted to see whether there is an association between marital status and vehicle color. The table below shows the results from the study. Assume all conditions for testing have been met. Vehicle color red black/white/silver blue/green/other Married 45 22 19 Unmarried 35 11 18 This was an observational study of randomly chosen vehicle owners. Test the hypothesis that marital status and vehicle color are associated, using a signiticance level of 0.05. Choose the correct decision regarding the null hypothesis and conclusion. Refer to the computer output below. 2-Test X-1.754774169 p= 415868121I7 di-2 A) Reject the null hypothesis; marital status and vehicle color are not associated. B) Fail to reject the null hypothesis, marital status and vehicle color are associated. C) Reject the null hypothesis; marital status and vehicle color are associated. D) Fail to reject the null hypothesis: marital status and vehicle color are not associated.
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