The x-bar chart is based on the principles of which distribution?
A) t-distribution
B) Chi square distribution
C) F distribution
D) Normal distribution

Question

Quizplus · Accepted Answer

The x-bar chart, used in statistical process control, is based on the principles of the normal distribution. It assumes that the sample means will be normally distributed around the process mean if the sample size is sufficiently large, due to the Central Limit Theorem.

The X-Bar Chart Is Based on the Principles of Which