all fhe help would be nice

The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 14 people reveals the mean yearly consumption to be 60 gallons with a standard deviation of 20 gallons. Assume the population distribution is normal. (Use LDistribution Tible.) a-1. What is the value of the population mean? Unknown 60 20 a-2. What is the best estimate of this value? b. For a 95% confidence interval, what is the value of ? (Round your answer to 3 decimal places.) c. What is the margin of error? (Round your answer to 3 decimal places.) d. Develop the 95% confidence interval for the population mean. (Round your answers to 3 decimal places.) e. Would it be reasonable to conclude that the population mean is 52 gallons? Yes No It is not possible to tell