jonmorton159
27.11.2019 •
Mathematics
For a quality control test, a company checks the miles per gallon (mpg) for a simple random sample of 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. set up an approximate 95% confidence interval for the average mpg of all minivans in the company's inventory.
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