C. d. What is the p-value? If your answer is less than .01, wri 0 Do we reject the null hypothesis at a = .05? A. Yes AT
C. d. What is the p-value? If your answer is less than .01, wri 0 Do we reject the null hypothesis at a = .05? A. Yes AT
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
amit

Transcribed Image Text:Car manufacturers are interested in whether there is a relationship between the size of car an individual
drives and the number of people in the driver's family (that is, whether car size and family size are
independent). To test this, suppose that 800 car owners were randomly surveyed with the results below.
Conduct a test of independence.
Family Size Sub & Compact Mid-size Full-size Van & Truck
1
35
40
35
2
50
3-4
50
5+
30
a.
C.
df =
d.
3
b. What is the x² test statistic?
20
20
20
$20
0
70
100$$
70
What is the p-value? If your answer is less than .01, write 0.
80
90
70
Do we reject the null hypothesis at a = .05?
A. Yes
B. No
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