SCENARIO 10-4
Two Samples Each of Size 25 Are Taken $\alpha = 0.05$

SCENARIO 10-4
Two samples each of size 25 are taken from independent populations assumed to be normally
distributed with equal variances. The first sample has a mean of 35.5 and standard deviation of 3.0
while the second sample has a mean of 33.0 and standard deviation of 4.0.
-Referring to Scenario 10-4, the critical values for a two-tail test of the null hypothesis of no
difference in the population means at the $\alpha = 0.05$ level of significance are _______.

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