In an effort to make better use of its resources, the New York City Food Bank engaged

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In an effort to make better use of its resources, the New York City Food Bank engaged in lean process improvement. This employee-driven kaizen effort resulted in a new method for packing meals for distribution to needy families. One goal of the process improvement effort was to reduce the variability in the meal-packing time. The following table summarizes information from a sample of data using the current method and the new method. Did the kaizen event successfully reduce the population variation? Use α = .10 and formulate the appropriate hypothesis test. 

Current Method New Method Sample Size Sample Variance n, = 31 si = 25 n2 = 25 s = 12

Distribution
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Statistics For Business & Economics

ISBN: 9781337901062

14th Edition

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran

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