In constructing variable control charts,______.
A)the population standard deviation is typically unknown
B)the sample standard deviation is typically unknown
C)we can use the population mean instead of the population standard deviation
D)we can use the population mode instead of the population range

Question

Quizplus · Accepted Answer

In constructing variable control charts, the population standard deviation is typically unknown and is estimated using sample standard deviation.

In Constructing Variable Control Charts,______