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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A random sample of n = 35 observations from a quantitative population produced a mean
= 2.4 and a standard deviation s = .29. Suppose your research objective is to show that the population mean m exceeds 2.3.
a. Give the null and alternative hypotheses for the test.
b. Locate the rejection region for the test using a 5% significance level.
c. Find the standard error of the mean.
d. Before you conduct the test, use your intuition to decide whether the sample mean
= 2.4 is likely or unlikely, assuming that µ = 2.3. Now conduct the test. Do the data provide sufficient evidence to indicate that µ > 2.3?
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