You are asked to estimate the average weight of an adult mal

You are asked to estimate the average weight of an adult male passenger for a study to maximize the number of scats in a certain airplane. You collect random weights of 1000 men passengers from a population of 100,000. You find that the average man in the sample weighs 180 pounds, and the standard deviation of the sample is 30 pounds. What is the 95% confidence interval?