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1.  

X2 = 6
X2 = 3.692
X2 = 4.364
X2 = 8


2.  

X2 = 107.937
X2 = 462.711
X2 = 427.196
X2 = 52.176


3.  



4.  

provides sufficient evidence to reject the claim that absences occur on different week days with the same frequency.
provides sufficient evidence to accept the claim that absences occur on different week days with the same frequency.


5.  

X2 = 13.277
X2 = 15.086
X2 = 16.812
X2 = 11.345


6.  

X2 = 5.146
X2 = 1.094


7.  

Find the value of the chi-square test statistic for the goodness-of-fit test.

A goodness of fit X2 of 5.950 has an associated P-value of 3.11. This suggests

The null should be accepted.
The null should be rejected.


8.  

Use a significance level of 0.01 to test the claim that workplace accidents are distributed Monday through Friday 25%, 15%, 15%, 15%, and 30% respectively.

A study of 100 workplace accidents showed 24, 15, 16, 13, and 32 occurred on Monday through Friday respectively.

Because the critical value is X2 is 13.277 and the test statistic is 0.507, accept that workplace accidents occur Monday through Friday with the respective percentages 25%, 15%, 15%, 15%, and 30%.
Because the critical value is X2 is 0.507 and the test statistic is 13.277, accept that woorkplace accidents occur Monday through Friday with the respective percentages 25%, 15%, 15%, 15%, and 30%.
Because the critical value is X2 is 13.277 and the test statistic is 0.507, reject that workplace accidents occur Monday through Friday with the respective percentages 25%, 15%, 15%, 15%, and 30%.
Because the critical value is X2 is 15.086 and the test statistic is 0.507, accept that workplace accidents occur Monday through Friday with the respective percentages 25%, 15%, 15%, 15%, and 30%.
Because the critical value is X2 is 11.345 and the test statistic is 0.507, accept that workplace accidents occur Monday through Friday with the respective percentages 25%, 15%, 15%, 15%, and 30%.


9.  

15
25
30
None of the above.


10.  

The critical value is 6.635, the test statistic is 1.552, and the null is not rejected.
The critical value is 6.635, the test statistic is 1.552, and the null is rejected.


11.  

8.70
3.24
5.42
3.06


12.  

10.00
1.6
30
0.264


13.  

15
6
30
720


14.  

F = 5.810
F = 10.036
F = 3.698
F = 7.923

   


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