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[Dags21]

A number of employees at a chemical plant were asked to indicate a preference from one of the three pension plans. The results are given in the following table. Is there a relationship between the pension plan selected and job classification of the employees? Use σ = .05 level of significance.

JobClass/Plan PlanA -PlanB- PlanC Total
Suspension 20 26. 58
Chemical 38 160 38
Labor 162 114 44
Total

 

[supernoy]

apply mo lang yung formula na gamit nyo...
may formula yan diba?
chi square (x2) ba ito?