Question: Suppose there are two normally distributed populations. One population has variance of 12, and when a sample of size 22 was picked from it, the

Suppose there are two normally distributed populations. One population has variance

Suppose there are two normally distributed populations. One population has variance of 12, and when a sample of size 22 was picked from it, the mean was 9. The second population has a variance of 14, and a sample of 18 yielded a mean of 7.8. Assume the samples are independent, at the 5 percent level of significance, test the null hypothesis Ho:u 1= u2 against the alternative hypothesis that u 1> 2

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