Question

The local newspaper receives several complaints per day about typographic errors. Overa seven-day period, the publisher has received calls from readers reporting the following total daily number of errors: 4, 3, 2, 6, 7, 3, and 9.
Based on these data alone, what type of control chart(s) should the publisher use?

A) p-chart

B) c-chart

C) x-bar chart

D) R-chart

E) x-bar chart and R-chart

Answer 1

Answer:E

Explanation:

X bar chart is typically combined with R chart to monitor process variables. If the variables isn't under control, then control limits might be too general, which means that causes of variation that are affecting the process mean can't be pin pointed.