Question

A racing car consumes a mean of 85 gallons of gas per race with a standard deviation of 7 gallons. If 39 racing cars are randomly selected, what is the probability that the sample mean would differ from the population mean by greater than 3 gallons

Answer 1

33.20% probability that the sample mean would differ from the population mean by greater than 1 gallon

Explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.