2. The cost of unleaded gasoline in the Bay Area once followed a normal distribution with a mean of $4.59 and a standard deviation of $0.10. Sixteen gas stations from the Bay Area are randomly chosen....

Extracted text: 2. The cost of unleaded gasoline in the Bay Area once followed a normal distribution with a mean of $4.59 and a standard deviation of $0.10. Sixteen gas stations from the Bay Area are randomly chosen. We are interested in the average cost of gasoline for the 16 gas stations. a. The distribution to use for the average cost of gasoline for the 16 gas stations is X~N(. b. What is the probability that a second random sample of 16 gas stations would produced a mean cost greater than $4.63 per gallon?