CH11 – Analyzing Variance in Bag Weights Jelly Beans for Quality Improvement
Essentials of Modern Business Statistics with Microsoft® Excel®
Anderson, Sweeney, Williams, Camm, and Cochran
07th Edition
Determine if there is a significant difference in the variances of bag weights between two machines filling three-pound bags of jelly beans. Use a statistical test with a 0.05 level of significance and draw a conclusion on which machine, if any, offers a greater opportunity for quality improvement.
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