SOLUTION: A sample of employees at a large chemical plant was asked to indicate a preference for one of three pension plans. The results are given in the following table. Does it seem that t

Question 348285: A sample of employees at a large chemical plant was asked to indicate a preference for one of three pension plans. The results are given in the following table. Does it seem that there is a relationship between the pension plan selected and the job classification of the employees? Use the .01 significance level.
Pension Plan
Job Class Plan A Plan B Plan C
supervisor 10 13 29
clerical 19 80 19
labor 81 57 22

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A sample of employees at a large chemical plant was asked to indicate a preference for one of three pension plans. The results are given in the following table. Does it seem that there is a relationship between the pension plan selected and the job classification of the employees? Use the .01 significance level.
Pension Plan
Job Class Plan A Plan B Plan C
supervisor 10 13 29
clerical 19 80 19
labor 81 57 22
----------------
Ho: row and column factors are independent
Ha: they are dependent
-----
I ran a Chi-Sq test on the the data and got:
test statistic : Chi-Sq = 84.04
p-value = 2.42x10^(-17)
=========================
Conclusion: Since the p-value is less than 1%, reject Ho.
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Cheers,
Stan H.
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