Physicians at a local healthcare center wanted to determine if mud wrestling can be the cause of rashes that students were contracting. They distributed a questionaire and the results are summarized by gender in the first table within photo. The second table displays the cell counts and expected cell counts. The chi sqaure statistic is 5.002 and the degrees of freedom is 1 with pvalue o

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 1E
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Physicians at a local healthcare center wanted to determine if mud wrestling can be the cause of rashes that students were contracting. They distributed a questionaire and the results are summarized by gender in the first table within photo. The second table displays the cell counts and expected cell counts. The chi sqaure statistic is 5.002 and the degrees of freedom is 1 with pvalue of 0.0253. 

 

Please help me understand what conclusion we can draw from the tables at 5% significance level. 

Gender
Developed rash? Female
12
12
Yes
No
Developed Yes Count
Rash?
Total
Developed Rash? Gender Crosstabulation
Gender
No
Expected Count
Count
Expected Count
Count
Expected Count
Male
12
38
Female
12
7.78
12
16.22
24
24.0
Male
22828
12
16.22
38
33.78
50
50.0
Total
24
24.0
50
50.0
74
74.0
Transcribed Image Text:Gender Developed rash? Female 12 12 Yes No Developed Yes Count Rash? Total Developed Rash? Gender Crosstabulation Gender No Expected Count Count Expected Count Count Expected Count Male 12 38 Female 12 7.78 12 16.22 24 24.0 Male 22828 12 16.22 38 33.78 50 50.0 Total 24 24.0 50 50.0 74 74.0
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