Consider the partially completed one-way ANOVA summary table.
Source Sum of Squares Degrees of
Freedom Mean Sum
of Squares
F
Between 270
Within 18
Total 810 21
The degrees of freedom for the sum of squares between for this ANOVA procedure is ____.
A) 1.
B) 2.
C) 3.
D) 4.
Question 2
Suppose Burger King has run a major advertising campaign in the hopes of increasing monthly sales.
To investigate the effectiveness of this campaign, Burger King randomly selected seven restaurants and recorded the monthly sales before and after the advertising. The following data represents these sales figures in thousands of dollars.Restaurant 1 2 3 4 5 6After 123 122 145 156 160 134Before 107 110 143 168 145 125If Population 1 is defined as sales after the advertising campaign and Population 2 is defined as sales before the advertising campaign, and using = 0.05, which one of the following statements is true? A) Because the p-value is less than , we can conclude that the average restaurant sales per month after the advertising campaign are higher than the average restaurant sales per month before the advertising campaign.
B) Because the p-value is greater than , we can conclude that the average restaurant sales per month after the advertising campaign are lower than the average restaurant sales per month before the advertising campaign.
C) Because the p-value is less than , we cannot conclude that the average restaurant sales per month after the advertising campaign are higher than the average restaurant sales per month before the advertising campaign.
D) Because the p-value is greater than , we cannot conclude that the average restaurant sales per month after the advertising campaign are higher than the average restaurant sales per month before the advertising campaign.
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