Planners in Ontario's Durham region compiled data for the value of building permits. The mean for all

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Planners in Ontario's Durham region compiled data for the value of building permits. The mean for all building permits (in thousands of dollars) was 97. But for a random sample of 38 permits in the smaller Durham region communities of Scugog, Brock, Clarington, and Uxbridge, the mean value was 113.6, with a standard deviation of 70.67 (based on data in the Durham Business News, June 1998). Using the 0.05 level of significance, test the hypothesis that these smaller communities have a mean value for building permits that is different from the regional mean of 97.
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Elementary Statistics

ISBN: 9780321225979

3rd Canadian Edition

Authors: Mario F. Triola

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