The equations for the acceptance and rejection lines for an item-by-item sequential sampling plan are given as
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Question:
The equations for the acceptance and rejection lines for an item-by-item sequential sampling plan are given as follows:
X A = -0.95 + 0.06 n
X R = 3.22 + 0.06 n
(A) An inspector tests 18 item without finding a single defective one. Under this plan should he have decided to accept the lot before reaching the 18 th item? Explain.
(B) What is the minimum number of items he should inspect before rejecting a lot?
Related Book For
Managing Controlling and Improving Quality
ISBN: 978-0471697916
1st edition
Authors: Douglas C. Montgomery, Cheryl L. Jennings, Michele E. Pfund
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