Question: Given a normal distribution with o: 3. we want to test the hypothesis H0: ,u = 20. We find that the sample mean is 21

Given a normal distribution with o: 3. we want to test

Given a normal distribution with o: 3. we want to test the hypothesis H0: ,u = 20. We find that the sample mean is 21 . The test statistic is Selectone: OA. 1.950 OB. 1.000 0C. 1.645 O D. impossible to find without more information

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