Consider the following hypotheses: A sample of 25 observations yields a sample mean of 12. Assume that
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Consider the following hypotheses:
A sample of 25 observations yields a sample mean of −12. Assume that the sample is drawn from a normal population with a sample standard deviation of 4.
a. Calculate the value of the test statistic.
b. At the 5% significance level, is the population mean less than −10? Explain.
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Related Book For
Business Statistics Communicating With Numbers
ISBN: 9781259957611
3rd Edition
Authors: Sanjiv Jaggia
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