The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of $ 4.77 and a standard deviation of $ 0.05. A sample of 27 Bay Area gas stations are randomly chosen....

The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of $ 4.77 and a standard deviation of $ 0.05. A sample of 27 Bay Area gas stations are randomly chosen. We are interested in the average cost of gasoline for the 27 service stations. The distribution to use for the average cost of gasoline for the 27 service stations is:

Select one:

a. N (4.77, 0.0019)

b. N (4.77, 0.0001)

c. N (4.77, 0.0096)

d. N (0.1767, 0.0019)

e. N (0.1767, 0.0005)