Stat....... Just 6...............

Mathematics
Tutor: None Selected Time limit: 1 Day

May 10th, 2015

Ho: level of coffee consumption and gender are independent

Ha: level of coffee consumption and gender are not independent

alpha=.05

test stat; Chi^2

Decision rule: reject Ho if p-value of computed chi^2 < .05

level of coffee consumption
                                         l low medium
 high
males 6 13 25 44
females 12 11 22 45

18 24 47
       
expected frequencies  
level of coffee consumption  
low low medium  high
males 8.90 11.87 23.24 44.00
females 9.10 12.13 23.76 45.00

18 24 47
       
       
    p-value= 0.309249  
conclusion: Fail to reject Ho, there is insufficient evidence to conclude that gender and coffee consumption are not independent.

May 10th, 2015

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