5. Suppose that the average assessed values of single family dwellings in a large municipality of $165,000 with a standard deviation of $20,000.

a. If a random sample of n = 100 dwellings is selected and the , the average assessed value of these dwellings is calculated, what is the mean in repeated sampling?

b. What is the standard deviation of ?

(All the symbols that are missing are the sample mean. (the x bar)