Do energy bills vary dramatically depending on where you live in the United States? Suppose 25 households
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Do energy bills vary dramatically depending on where you live in the United States? Suppose 25 households from four regions in the United States are sampled. The values for the average annual energy bill are shown in the accompanying table and are consistent with those found by
The Department of Energy (Money, June 2009). A portion of the ANOVA table is also shown.
a. Complete the ANOVA table. Assume energy costs are normally distributed.
b. At the 1% significance level, can we conclude that average annual energy bills vary byregion?
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Related Book For
Essentials Of Business Statistics Communicating With Numbers
ISBN: 9780078020544
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly
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