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# After rejecting the null hypothesis of equal

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Unformatted text preview: d design is used, what is the degree of freedom for treatments? A. 5 B. 2 C. 4 D. 8 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 1-975 Chapter 01 - An Introduction to Business Statistics 18. In a one-way analysis of variance with three treatments, each with five measurements, in which a completely randomized design is used, what is the degree of freedom for error? A. 6 B. 8 C. 2 D. 12 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 19. Consider the one-way ANOVA table. What is the treatment mean square? A. 71.297 B. .5604 C. 1.297 D. 213.881 E. 9.7 AACSB: Analytic Bloom's: Application Difficulty: Easy Learning Objective: 2 Topic: One-way ANOVA 1-976 Chapter 01 - An Introduction to Business Statistics 20. Consider the one-way ANOVA table. What is the mean square error? A. 71.297 B. .5604 C. 1.297 D. 213.8810 E. 9.7 AACSB: Analytic Bloom's: Application Difficulty: Easy Learning Objective: 2 Topic: One-way ANOVA 21. Consider the one-way ANOVA table. How many groups (treatment levels) are included in the study? A. 3 B. 4 C. 6 D. 20 E. 24 AACSB: Analytic Bloom's: Application Difficulty: Easy Learning Objective: 2 Topic: One-way ANOVA 1-977 Chapter 01 - An Introduction to Business Statistics 22. Consider the one-way ANOVA table. If there are an equal number of observations in each group, then each group (treatment level) consists of ______ observations. A. 3 B. 4 C. 6 D. 20 E. 24 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 23. When computing individual confidence intervals using the t statistic for all possible pairwise comparison of means, the experimentwise error rate will be: A. Equal to α B. Less than α C. Greater than α AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 1-978 Chapter 01 - An Introduction to Business Statistics 24. When computing confidence intervals using Tukey's procedure for all possible pairwise comparison of means, the experimentwise error rate will be A. Equal to α B. Less than α C. Greater than α AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 25. When computing a confidence interval for the difference between two means, the width of the (1 - α) confidence interval based on Tukey's procedure will be __________ the width of the (1 - α) individual confidence interval based on t statistic. A. Greater than B. Less than C. Same as D. Sometimes greater than sometimes less than AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 26. When using a completely randomized design (one - way analysis of variance), the calculated F statistic will decrease A. The variability among the groups decreases relative to the variability within the groups B. The total variability increases C. The total variability decreases D. The variability among the groups increases relative to the variability within the groups AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 1-979 Chapter 01 - An Introduction to Business Statistics 27. In a completely randomized ANOVA, other things equal as the sample means get closer to each other, the probability of rejecting the null hypothesis: A. Decreases. B. Increases. C. Is unaffected. AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Learning Objective: 2 Topic: One-way ANOVA 28. In a completely randomized (one-way) analysis of variance problem with c groups and a total of n observations in all groups, the variance between groups is equal to: A. (Total sum of squares) - (Sum of squares within columns) B. (Sum of squares between columns)/(c-1) C. (Total sum of squares) - [(Sum of squares within columns)/(n-c)] D. [(Total sum of squares)/(n-1)] - [(Sum of squares between columns)/(c-1)] AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: One-way ANOVA 29. The degrees of freedom error (within group variation) of a completely randomized design (one-way) ANOVA test with 4 groups and 15 observations per each group is: A. 3 B. 56 C. 59 D. 14 E. 4 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: One-way ANOVA 1-980 Chapter 01 - An Introduction to Business Statistics 30. The degrees of freedom treatment (between group variation) of a completely randomized design (one-way) ANOVA test with 4 groups and 15 observations per each group is: A. 3 B. 56 C. 59 D. 14 E. 4 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 2 Topic: One-way ANOVA 31. The degrees of freedom error for a randomized block design ANOVA test with 4 treatments and 5 blocks is: A. 3 B. 4 C. 20 D. 19 E. 12 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 3 Topic: Randomized block design 32. Which one of the followin...
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