Question: A sample of 21 observations yielded a sample standard deviation of 5. If we want to test Ho: o = 20, the test statistic

A sample of 21 observations yielded a sample standard deviation of 5. If we want to test Ho: o = 20, the test

A sample of 21 observations yielded a sample standard deviation of 5. If we want to test Ho: o = 20, the test statistic is a) 25 O b) 50 O c) 5 d) 20

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