A new operating system is installed in every workstation at a large company. The claim of the
Question:
a) What is the standard error of the mean difference?
b) How many degrees of freedom does the t-statistic have?
c) What is the 90% confidence interval for the mean difference?
d) What do you conclude at α = 0.05?
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Related Book For
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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