A Hypothesis Tests That Two Population Means Are Equal $\pm$ 2861
B)

question 83

Multiple Choice

A hypothesis tests that two population means are equal. A sample of 10 with a standard deviation of 5 is selected from the first population and a sample of 15 with a standard deviation of 5 from the second population. Testing the claim at the 0.01 level, what is the critical value? Assume unequal standard deviations.

• A) \(\pm\)2.861
• B) \(\pm\)2.807
• C) \(\pm\)2.787
• D) \(\pm\)2.576

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