Bundle: Statistics for Business & Economics, Loose-Leaf Version, 13th + MindTap Business Statistics with XLSTAT, 1 term (6 months) Printed Access Card
Bundle: Statistics for Business & Economics, Loose-Leaf Version, 13th + MindTap Business Statistics with XLSTAT, 1 term (6 months) Printed Access Card
13th Edition
ISBN: 9781337148092
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Chapter 19, Problem 22SE

Managers of 1200 different retail outlets make twice-a-month restocking orders from a central warehouse. Past experience shows that 4% of the orders result in one or more errors such as wrong item shipped, wrong quantity shipped, and item requested but not shipped. Random samples of 200 orders are selected monthly and checked for accuracy.

  1. a. Construct a control chart for this situation.
  2. b. Six months of data show the following numbers of orders with one or more errors: 10, 15, 6, 13, 8, and 17. Plot the data on the control chart. What does your plot indicate about the order process?
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onsider a random variable x that follows a uniform distribution, with a = 2 and b = 9. What is the probability that x is less than 6? P(x < 6) = 0.2857   P(x < 6) = 0.5714   P(x < 6) = 0.17142   P(x < 6) = 0.4286     What is the probability that x is between 4 and 6? P(4 ≤ x ≤ 6) = 0.2857   P(4 ≤ x ≤ 6) = 0.157135   P(4 ≤ x ≤ 6) = 0.0928525   P(4 ≤ x ≤ 6) = 0.11428
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Chapter 19 Solutions

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