My Drive - Google Drive GA random sample of 100 COS X O Math 21 Final Fall 2009 In Person Final Users/chasejamescanterbury/Dropbox/Online%20OFinal%20Exam%20F19.pdf 9. There are dozens of hypothesis tests that we do not cover in this class. The following is an example of a two variance test, which compares the variance of one population to the variance of another population. (The symbol for variance is a'.) The test is performed in a manner that is very similar to the two-mean or two-proportion test. Perform the two-variance test for the following problem. A consumer group tested 30 foreign cars and 40 US cars to investigate the repair costs associated with a 20 mph head on crash. The foreign cars had a mean repair cost of $1320 with a standard deviation of $529. The US cars had a mean repair cost of $980 with a standard deviation of $396. At the 0.05 level of significance, test the claim that foreign car repair costs have greater variance than US car repair costs. p-value: 0.0458) (Test Stat: 1.78 Have you proved that foreign car repair costs have greater variance than US car repair costs? MacBook Air 80 F2 F3 F4 ►II F8 F5 F6 F7 F9 F10 F11 F12 %24 4 23 & ) 8. delete E } ी
My Drive - Google Drive GA random sample of 100 COS X O Math 21 Final Fall 2009 In Person Final Users/chasejamescanterbury/Dropbox/Online%20OFinal%20Exam%20F19.pdf 9. There are dozens of hypothesis tests that we do not cover in this class. The following is an example of a two variance test, which compares the variance of one population to the variance of another population. (The symbol for variance is a'.) The test is performed in a manner that is very similar to the two-mean or two-proportion test. Perform the two-variance test for the following problem. A consumer group tested 30 foreign cars and 40 US cars to investigate the repair costs associated with a 20 mph head on crash. The foreign cars had a mean repair cost of $1320 with a standard deviation of $529. The US cars had a mean repair cost of $980 with a standard deviation of $396. At the 0.05 level of significance, test the claim that foreign car repair costs have greater variance than US car repair costs. p-value: 0.0458) (Test Stat: 1.78 Have you proved that foreign car repair costs have greater variance than US car repair costs? MacBook Air 80 F2 F3 F4 ►II F8 F5 F6 F7 F9 F10 F11 F12 %24 4 23 & ) 8. delete E } ी
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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Answer the whole page nine please.
Transcribed Image Text:My Drive - Google Drive
GA random sample of 100 COS X
O Math 21 Final Fall 2009
In Person Final
Users/chasejamescanterbury/Dropbox/Online%20OFinal%20Exam%20F19.pdf
9.
There are dozens of hypothesis tests that we do not cover in this class. The following is
an example of a two variance test, which compares the variance of one population to
the variance of another population. (The symbol for variance is a'.) The test is
performed in a manner that is very similar to the two-mean or two-proportion test.
Perform the two-variance test for the following problem.
A consumer group tested 30 foreign cars and 40 US cars to investigate the repair costs
associated with a 20 mph head on crash.
The foreign cars had a mean repair cost of $1320 with a standard deviation of
$529.
The US cars had a mean repair cost of $980 with a standard deviation of $396.
At the 0.05 level of significance, test the claim that foreign car repair costs have greater
variance than US car repair costs.
p-value: 0.0458)
(Test Stat: 1.78
Have you proved that foreign car repair costs have greater variance than US car repair
costs?
MacBook Air
80
F2
F3
F4
►II
F8
F5
F6
F7
F9
F10
F11
F12
%24
4
23
&
)
8.
delete
E
}
ी
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