a. In a sample of 1000 mean is 17.5 and the standard deviation is 2.5. In another sample of 800 the mean is 18 and the standard deviation is 2%.Assuming than the samples are independent. Test whether the populations have the same standard deviation.[5M]b. The following data come from a study in which random samples of the employees of three Indian government agencies were asked questionsabout their pension plan:Agency AAgency BAgency CFor the pension plan 628056Against the pension plan356575Use
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