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 0.10 significance level. Pension Plan Job Class Supervisor Clerical Labour Plan A Plan B Plan C 170 118 120 140 130 120 140 100 90 a. State the decision rule. Use the 0.10 significance level. Appendix B.6 (Round the final decision rule to 3 decimal places. Round the intermediate calculations and the x 2 value to 2 decimal places.) Ho: Pension plan preference and job class are not related. H: Pension plan preference and job class are related. Reject Ho if x 2 x2=