Question

Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to introduce an advertising campaign to increase daily sales. In order to determine the effectiveness of the advertising campaign, a sample of 49 day's sales were taken. The sample showed an average daily sales of $6,300. From past history, the restaurant knew that its population standard deviation is about $1,000. If the level of significance is 0.01, do the sales increased as a result of the advertising campaign?

Answer 1

Answer:

Yes

Explanation:

The 0.01 percent of the deviation plus the 0.01 percent of the sales average is not enough to get to the $6,300 daily, which means that the factor of the increase sales is the advertising campaign.