What is the point of estimate for the population mean

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Al Fishhaber is the owner of Al's Marathon gas station. Al would like to estimate the mean number of gallons of gasoline sold to his customers. From his records he selects a sample of 60 sales and finds that the mean number gallons sold is 8.60 and the standard deviation is 2.30 gallons.

a. What is the point of estimate for the population mean?

b. Construct a 99 percent confidence interval.

c. interpret the confidence level.

Reference no: EM132394800

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