ELEMENTARY STAT F/CCP PKG >P< 2015
ELEMENTARY STAT F/CCP PKG >P< 2015
3rd Edition
ISBN: 9781269915205
Author: Triola
Publisher: PEARSON
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Chapter 14.2, Problem 7BSC
To determine

To construct: The R chart by treating the seven measurements from each day as a sample.

To describe: A suggestion using the obtained results.

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An article in the ASCE Journal of Energy Engineering [“Overview of Reservoir Release Improvements at 20 TVA Dams” (Vol. 125, April 1999, pp. 1–17)] presents data on dissolved oxygen concentrations in streams below 20 dams in the Tennessee Valley Authority system. The observations are (in milligrams per liter):
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