The t-distribution should be used when _____,while the z-distribution should be used when _____.
A)sample sizes are large;sample sizes are small
B)sample sizes are small;m and s are known
C)sample sizes are small;sample sizes are large
D)both b and c

Question

Quizplus · Accepted Answer

The t-distribution should be used when sample sizes are small, while the z-distribution should be used when sample sizes are large and/or the population mean and standard deviation are known. Therefore, both options b and c are correct.

The T-Distribution Should Be Used When _____,While the Z-Distribution Should