Essentials of Statistics for Business and Economics
9th Edition
ISBN: 9780357118191
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
Publisher: Cengage Learning US
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Chapter 13.3, Problem 19E
Testing Time to Breakdown Between All Pairs of Machines. Refer to exercise 18. Use the Bonferroni adjustment to test for a significant difference between all pairs of means. Assume that a maximum overall experiment wise error rate of .05 is desired.
18. Machine Breakdowns. To test for any significant difference in the number of hours between breakdowns for four machines, the following data were obtained.
- a. At the α = .05 level of significance, what is the difference, if any, in the population mean times among the four machines?
- b. Use Fisher’s LSD procedure to test for the equality of the means for machines 2 and 4. Use a .05 level of significance.
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Chapter 13 Solutions
Essentials of Statistics for Business and Economics
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