The Central Limit Theorem:

Question $36$ options:

A$)$

controls the steepness of an operating characteristic curve.

B$)$

states that the average range can be used as a proxy for the standard deviation.

C$)$

states that the average of assignable variations is zero.

D$)$

allows managers to use the normal distribution as the basis for building some control charts.

E$)$

is the theoretical foundation of the c$-$chart.