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    Is there a relationship between the preferred pension plan and job classification at a large chemical plant company?

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    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

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    Solution Summary

    This solution provides the null and alternative hypothesis and conducts a chi-square analysis to compare to the p-value. A decision is made to accept or reject the null hypothesis. All steps are shown in an Excel file.