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Mathematics, 08.09.2021 18:50 jhinny
For a quality control test, a company checks the miles per gallon (mpg) for a simple random sample of n=100 minivans drawn from its current inventory. The average mpg of these 100 minivans is 15.6 with a standard deviation of 1.9 mpg. We want a confidence interval for the average mpg of all minivans in the company's inventory.
Required:
Set up an approximate 95% confidence interval for the average mpg of all minivans in the company's inventory.
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For a quality control test, a company checks the miles per gallon (mpg) for a simple random sample o...
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