Problem III) An epidemiological study looked at the relationship between earbud use and hearing loss. Data for the number of earbud users appear in the table below. Test for an association between earbud use and hearing loss at the 5% level of significance. Daily Earbud Use (min.) Hearing Loss > 60 60-120 120-180 > 180 None 504 650 750 401 Slight Moderate 40 52 57 60 26 22 11 What is the degrees of freedom associated with this problem? а. v = 1 b. V = 4 с. V = 3 d. v= 6 What is the Chi-square critical value? а. 12.592 b. 7.815
Problem III) An epidemiological study looked at the relationship between earbud use and hearing loss. Data for the number of earbud users appear in the table below. Test for an association between earbud use and hearing loss at the 5% level of significance. Daily Earbud Use (min.) Hearing Loss > 60 60-120 120-180 > 180 None 504 650 750 401 Slight Moderate 40 52 57 60 26 22 11 What is the degrees of freedom associated with this problem? а. v = 1 b. V = 4 с. V = 3 d. v= 6 What is the Chi-square critical value? а. 12.592 b. 7.815
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 some help with stats
Transcribed Image Text:с. 6.635
d. 3.841
What is the total Chi-value?
а.
12.034
b. 5.625
c. 25.141
d. 19.924
What is your conclusion?
Reject H0
b. Do Not Reject H0
c. This test has no conclusion
Transcribed Image Text:Problem III) An epidemiological study looked at the relationship between earbud use and
hearing loss. Data for the number of earbud users appear in the table below. Test for an
association between earbud use and hearing loss at the 5% level of significance.
Daily Earbud Use (min.)
Hearing Loss
> 60
60–120
120-180
> 180
None
504
650
750
401
Slight
40
52
57
60
Moderate
11
26
22
11
What is the degrees of freedom associated with this problem?
а.
V =
1
b. v= 4
с.
V =
3
d. v= 6
What is the Chi-square critical value?
а.
12.592
b. 7.815
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