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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
78.  The article Caffeine Knowledge, Attitudes, and Consumption in Adult Women (J. Nutrit. Ed.,
1992: 179—184) reports the following summary data on daily caffeine consumption for a sample of adult women: n = 47, x = 215 mg, s = 235 mg, and range = 5—1176.
a.  Â
Does it appear plausible that the population dis- tribution of daily caffeine consumption is nor- mal? Is it necessary to assume a normal popula- tion distribution to test hypotheses about the value of the population mean consumption? Explain your reasoning.
b.  Suppose it had previously been believed that mean consumption was at most 200 mg. Does the given data contradict this prior belief? Test the appropriate hypotheses at signi cance level
.10 and include a P-value in your analysis.
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