To compare three brands of computer keyboards, four data entry specialists were randomly selected. Each specialist used
Question:
a. Test the null hypothesis H0 that no differences exist between the effects of the keyboard brands on the mean number of words entered per minute. Set α = .05.
b. Test the null hypothesis H0 that no differences exist between the effects of the data entry specialists on the mean number of words entered per minute. Set α = .05.
c. Use Tukey simultaneous 95 percent confidence intervals to make pairwise comparisons of the keyboard brand effects on the mean number of words entered per minute. Which keyboard brand maximizes the mean number of words entered per minute?
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Related Book For
Essentials Of Business Statistics
ISBN: 9780078020537
5th Edition
Authors: Bruce Bowerman, Richard Connell, Emily Murphree, Burdeane Or
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