After a number of complaints about its directory assistance, a telephone company examined samples of calls to

Question:

After a number of complaints about its directory assistance, a telephone company examined samples of calls to determine the frequency' of wrong numbers given to callers. Each sample consisted of 100 calls. The manager stated that the error rate is about 4 percent. Construct a control chart using 95 percent limits and using p = .04. Is the process in control? Is the manager’s assertion about the error rate correct? Explain.

image text in transcribed
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Operations Management

ISBN: 978-0071091428

4th Canadian edition

Authors: William J Stevenson, Mehran Hojati

Question Posted: