Small boxes of Nutra Flakes cereal are labeled net weight 10 ounces. Each hour, random samples of
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Question:
Small boxes of Nutra Flakes cereal are labeled "net weight 10 ounces." Each hour, random samples of size boxes are weighed to check process control. five hours of observations yielded the following:
Time 9.a.m 10.a.m 11.a.m Noon 1.p.m
Box 1 9.8 10.1 9.9 9.7 9.7
Box 2 10.4 10.2 10.5 9.8 10.1
Box 3 9.9 9.9 10.3 10.3 9.9
Box 4 10.3 9.8 10.1 10.2 9.9
Using the data, construct limits for x-bar and R-charts. is the process in control?
What other steps should the quality control department follow at this point?
Related Book For
Quantitative Analysis for Management
ISBN: 978-0132149112
11th Edition
Authors: Barry render, Ralph m. stair, Michael e. Hanna
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