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Question
Suppose you are a researcher investigating the annual sales differences among five categories of businesses. The study looks at 55 companies equally divided among categories A, B, C, D, and E.Source SS DF MS F
Treatment 583.39 4 145.85 7.501
Error 972.18 50 19.4436
Total 1555.57 54
Is there a significant difference in the annual sales of the five business categories at α = .05? Do you reject H0 ?
Answer
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