Researchers at Miami University in Oxford, Ohio, investigated the use of p charts to monitor the market
Question:
a. Construct a p chart, using data from the first 30 days (prior to the promotion) to monitor the market share for RudyBird disks.
b. Is the market share for RudyBird in control before the start of the in-store promotion?
c. On your control chart, extend the control limits generated in (b) and plot the proportions for days 31 through 37. What effect, if any, did the in-store promotion have on RudyBird's market share?
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Related Book For
Basic Business Statistics Concepts And Applications
ISBN: 9780132168380
12th Edition
Authors: Mark L. Berenson, David M. Levine, Timothy C. Krehbiel
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