Difference between a hypothesis test

Reference no: EM13496603

Which of the following is a difference between a hypothesis test with the t statistic and a test with a z-score?

1. You must calculate the sample variance (or standard deviation) for the t statistic but not for the z-score

2. You must know the population variance (or standard deviation) for the z-score but not for the t statistic

3. You must use a different table to find critical values for the t test than for the z-score test.

4. All of the other options are differences.

Reference no: EM13496603

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