The ________ is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known, and the population variance is estimated from the sample.

The ________ is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known, and the population variance is estimated from the sample.

The ________ is a statistic that assumes that the variable has a symmetric bell-shaped distribution and the mean is known, and the population variance is estimated from the sample.



A) a statistic

B) p statistic

C) t statistic

D) z statistic

E) bell statistic



Answer: C


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