A production process that is in control has a mean ($\mu$) of 80 and a standard deviation ($\sigma$) of 10.
a.Determine the upper and the lower control limits for sample sizes of 25.
b.Five samples had means of 81, 84, 75, 83, and 79. Construct an X bar chart and explain whether or not the process is in control.

Question

Quizplus · Accepted Answer

The Answer of A production process that is in control has a mean ($\mu$) of 80 and a standard deviation ($\sigma$) of 10.
a.Determine the upper and the lower control limits for sample sizes of 25.
b.Five samples had means of 81, 84, 75, 83, and 79. Construct an X bar chart and explain whether or not the process is in control.

A Production Process That Is in Control Has a Mean μ\muμ

A Production Process That Is in Control Has a Mean $\mu$