Solved: It found that the average daily sales were 6400 per day, Basic Statistics

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It found that the average daily sales were 6400 per day

Sales at a fast-food restaurant average $6,000 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 49 days of sales was taken. It found that the average daily sales were $6,400 per day. From past history, the restaurant knew that its population standard deviation is about $1,000. The value of the test statistic is?

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Basic Statistics: It found that the average daily sales were 6400 per day

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