To conduct a test of hypothesis with a single sample mean,we must assume
A)the sampling distribution is normal.
B)random sampling.
C)interval-ratio level of measurement.
D)all of these.

Question

Quizplus · Accepted Answer

All of these assumptions are necessary for conducting a test of hypothesis with a single sample mean. The sampling distribution should be approximately normal, the sample should be taken randomly from the population, and the data should have an interval or ratio level of measurement.

To Conduct a Test of Hypothesis with a Single Sample