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Question
Given the following information about a hypothesis test of the difference between two means based on independent random samples, which one of the following is the correct rejection region at a significance level of .05?
HA: 
A > B, 
= 12, 
= 9, s1 = 4,s2 = 2, n1 = 13, n2 = 10.
A. Reject H0 if t > 1.96.
B. Reject H0 if t > 1.645.
C. Reject H0 if t > 1.721.
D. Reject H0 if t > 2.08.
E. Reject H0 if t > 1.782.
Answer
This answer is hidden. It contains 2 characters.
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