When a process is in control, it results in there being, on average, 16 defects per unit of output.C-chart limits of 4 and 28 would lead to a _______ chance of a Type I error.
A)67%
B)92%
C)33%
D)0.3%
E)5%

Question

Quizplus · Accepted Answer

When a process is in control, the probability of a Type I error is equal to the probability of a point falling outside the control limits. In this case, the control limits are 4 and 28, and the average number of defects per unit of output is 16. The probability of a point falling outside the control limits is therefore 0.3%.

When a Process Is in Control, It Results in There