A company wants to determine if its employees have any preference among 5 different health plans ...

     A company   wants to determine if its employees have any preference among 5 different   health plans which it offers to them. A sample of 200 employees provided the   data below. Calculate the chi-square test statistic to test the claim that   the probabilities show no preference. a= 0.01      Plan 1 2 3 4 5   Employees 18 65 32 30 55