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

Question

Quizplus · Accepted Answer

The t statistic is used when the population variance is unknown and is estimated from the sample, assuming a symmetric bell-shaped distribution.

The ________ Is a Statistic That Assumes That the Variable