What is measured by the denominator of the z-score test statistic? A)The average distance between M and µ that would be expected if H₀ was true B)The actual distance between M and µ C)The position of the sample mean relative to the critical region D)Whether or not there is a significant difference between M and µ

Question

Quizplus · Accepted Answer

The denominator of the z-score test statistic measures the standard error of the mean, which represents the average distance between the sample mean (M) and the population mean (µ) that would be expected if the null hypothesis were true. This standard error is used to standardize the difference between the sample mean and the population mean, allowing for comparison across different scales.

What Is Measured by the Denominator of the Z-Score Test