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1. An article reports the results of an analysis of salespersons' performance level as a function of two factors: task difficulty and effort. Included in the article is the following ANOVA table:

Variable	df	F Value	p
Task difficulty	1	0.39	0.5357
Effort	1	53.27	0.0001
Interaction	1	1.95	0.1649

a. How many levels of task difficulty were studied?

b. How many levels of effort were studied?

c. Are there any signi?cant task difficulty main effects?

d. Are there any signi?cant effort main effects?

e. Are there any signi?cant interactions of the two factors? Explain.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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