Question: 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