We have taken 12 samples of 400 letters each from a typing pool and found the following
Question:
a. Calculate the control limits for a p control chart.
b. A sample of 400 letters has just been taken, and 6 letters were found to be defective. Is the process still in control?
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Step by Step Answer:
a CL 01 02 02 01 03 02 01 04 03 0212 0175 UCL 01...View the full answer
Answered By
Saud Ur Rehman
Evaluating manufacturing processes by designing and conducting research programs; applying knowledge of product design, fabrication, assembly, tooling, and materials; conferring with equipment vendors; soliciting observations from operators. Developing manufacturing processes by studying product requirements; researching, designing, modifying, and testing manufacturing methods and equipment; conferring with equipment vendors. Keeping equipment operational by coordinating maintenance and repair services; following manufacturer's instructions and established procedures; requesting special service.
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Related Book For 
Operations Management in the Supply Chain Decisions and Cases
ISBN: 978-0073525242
6th edition
Authors: Roger Schroeder, M. Johnny Rungtusanatham, Susan Goldstein
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