Analyze the data in the following problems using median and up/down run tests with z = 2.

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Analyze the data in the following problems using median and up/down run tests with z = ±2.

a. Given the following run test results of process output, what do the results of the run tests suggest about the process?

Test z-score Median +1.37 Up/Down +1.05

b. Twenty means were plotted on a control chart. An analyst counted 14 runs above/below the median, and 8 up/down runs. What do the results suggest about the process?

c. Problem 8

d. Problem 7

 LO.1

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Operations Management

ISBN: 9781260575712

14th Edition

Authors: William J Stevenson

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