High rent district:the mean monthly rent for a one-bedroomapartment without a doorman in Manhattan is 2544.Assume thestandard deviation is 483.A real estate firm samples 83apartments.Use cumulative distribution table if needed.
What is the probability that the sample mean rent is greaterthan 2614? Round atleast 4 places
What is the probability that sample mean rent is between 2413and 2513? Round atleast 4 places
Find the 65th percentile of the sample mean rent? Round 4places
Would it be unusual if the sample mean were greater than 2610?Round 4 places