Suppose Burger King has run a major advertising campaign in the hopes of increasing monthly sales

Question

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.

Answer 1

D