When the population is normally distributed and the population standard deviation σ is unknown,then for any sample size n,the sampling distribution of
is based on the z distribution.

Question

When the population is normally distributed and the population standard deviation σ is unknown,then for any sample size n,the sampling distribution of 
is based on the z distribution.

Quizplus · Accepted Answer

If the population standard deviation σ is unknown, then the sampling distribution of  will be based on the t distribution, not the z distribution.

When the Population Is Normally Distributed and the Population Standard