Question

The difference between the denominator of the z statistic and that of the single-sample t statistic is that in a:

a. z statistic we divide by the actual population standard error (sM), but in a t statistic we divide by the estimated standard error (σM).

b. z statistic we divide by the actual population standard error (σM), but in a t statistic we divide by the estimated standard error (sM).

c. t statistic we divide by the actual population standard error (sM), but in a z statistic we divide by the estimated standard error (σM).

d. t statistic we divide by the actual population standard error (σM), but in a z statistic we divide by the estimated standard error (sM).

Answer 1

z statistic we divide by the actual population standard error (σM), but in a t statistic we divide by the estimated standard error (sM).

Option B is correct.