A store manager believed that the unusually cold winter one year decreased sales at his store....

 

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A store manager believed that the unusually cold winter one year decreased sales at his store. In prior years, sales at the store between January and March have averaged at $10,000 per day. When the manager chose a random sample of 15 days during those months of the current year, he found average daily sales in the sample to be $9,000 with a standard deviation of $1,000. What is the correct alternative hypothesis for his study? A store manager believed that the unusually cold winter one year decreased sales at his store. In prior years, sales at the store between January and March have averaged at $10,000 per day. When the manager chose a random sample of 15 days during those months of the current year, he found average daily sales in the sample to be $9,000 with a standard deviation of $1,000. What is the correct alternative hypothesis for his study?

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The correct alternative hypothesis Ha for the store mana... View the full answer