Study of ages of motorcyclists, Basic Statistics

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Study of ages of motorcyclists

A study of ages of motorcyclists killed in crashes involves random selection of 134 drivers with mean of 33.01 years. Supposing that s=9.9 years construct and interpret a 99% confidence interval estimate of mean age of all motorcyclists killed in crashers.

What is the 99% confidence interval for the population mean u?

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