For the data in Exercise 3, a) Test the null hypothesis at = 0.05 using the
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For the data in Exercise 3,
a) Test the null hypothesis at α = 0.05 using the pooled t-test. (Show the t-statistic, P-value, and conclusion.)
b) Find a 95% confidence interval using the pooled degrees of freedom.
c) Are your answers different from what you previously found in Exercise 11? Explain briefly why or why not.
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Related Book For
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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