Easy Tax is a service company that prepares tax returns.An outside auditor has examined 20 samples each containing one completed tax return.The total number of defects observed over the 20 samples is 200.The centerline for the control chart constructed is
A)5
B)10
C)15
D)20

Question

Quizplus · Accepted Answer

The centerline for a control chart is calculated as the average number of defects per sample. Here, the total number of defects is 200 over 20 samples, so the average is 200/20 = 10.

Easy Tax Is a Service Company That Prepares Tax Returns