Data About the Price of a Round-Trip Ticket Atlanta-Barcelona, Suggests $\bar{x}$

Essay

Data about the price of a round-trip ticket Atlanta-Barcelona, suggests that a plausible model, for X = price, is a population distribution having mean μ= $689.61 and standard deviation σ =$34.29.

A) Calculate the expected value of $\bar{x}$ for a random sample of size 66.
B) Calculate the standard deviation of $\bar{x}$ for a random sample of size 66.