Question: can you write down all equations with the explanations A car dealer, who sells new cars, is interested in estimating the average number of years

can you write down all equations with the explanations

A car dealer, who sells new cars, is interested in estimating the average number of years a new car can run without any repairs. A random sample of n=81 cars yields the average 3 years with a standard deviation of 1.8 years. Compute 99% confidence intervals for the population mean

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