This case is in the house of the experiment conducted by the director of the plant to determine its quality machine is working properly. The case can be used to help students understand the concept of change and sources of variation. It is also useful to illustrate the effective use of descriptive statistics, one test sample, a couple of tests and their nonparametric counterparts. "Hide
by Chris A. Higgins, David Wiskel Source: Richard Ivey School of Business Foundation 2 pages. Publication Date: June 28, 2007. Prod. #: 907E15-PDF-ENG
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