Question: Given the following samples from two normally distributed populations with identical but unknown population standard deviations. Test that two population means and variances differ significantly.

Given the following samples from two normally distributed populations with

identical but unknown population standard deviations. Test that two population means

and variances differ significantly. Also find 95% confidence interval for the difference

of means and ratio of population variances.

Sample 1 33, 27, 43, 37, 45, 47, 33 39

Sample 2 24, 31, 25, 42, 29, 39, 27, 28

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