The one-sample z test is used to determine whether the difference between your sample mean and the hypothesized population value is _____.
A)due to sampling error
B)significantly large in the "real world"
C)due to mistakes made when collecting data
D)both a and b

Question

Quizplus · Accepted Answer

The one-sample z test is used to determine whether the difference between your sample mean and the hypothesized population value is due to sampling error or not. It tests whether the difference is statistically significant or not. Therefore, option A is the correct choice. Option B talks about the practical significance of the difference, which is not the aim of the one-sample z test. Option C is not relevant to the purpose of the one-sample z test. Option D includes option A, which is correct, and option B, which is incorrect.

The One-Sample Z Test Is Used to Determine Whether the Difference