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A study of the ages of motorcyclists killed in crashes involves the random selection of 167 drives with a mean of 35.79 years. Assuming that=11.8
A study of the ages of motorcyclists killed in crashes involves the random selection of 167 drives with a mean of 35.79 years. Assuming that=11.8 years, construct and interpret a 95% confidence interval estimate of the mean age of all motorcyclists killed in crashes.
What is the 95% confidence interval for the population mean ?
___< < ___ (round to two decimal places as needed)
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