Question: 10.57 Determine the critical values that would be used for the following hypothesis tests (using the classical approach) about the difference between two means with

10.57 Determine the critical values that would be used for the following hypothesis tests (using the classical approach) about the difference between two means with population variances unknown.

a. Ha: 1 2 0, n1 26, n2 16, 0.05

b. Ha: 1 2 0, n1 36, n2 27, 0.01

c. Ha: 1 2 0, n1 8, n2 11, 0.10

d. Ha: 1 2 10, n1 14, n2 15, 0.05

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