Sales at a fast-food restaurant average $7,892 per day. The restaurant decided to introduce an advertising campaign to increase daily sales. To determine the effectiveness of the advertising campaign, a sample of 93days of sales were taken. They found that the average daily sales were $8,857 per day. From past history, the restaurant knew that its population standard deviation is about $2,280. What is the value of the test statistic?
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Sales at a fast-food restaurant average $7,892 per day. The restaurant decided to introduce an adver...
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