According to the U.S. Census Bureau publication
Manufactured Housing Statistics, the mean price of new mobile homes is $65,100. Assume a standard deviation of $7200.
Let x-bar denote the mean price of a sample of new mobile homes.
a. For samples of size 50, find the mean and standard deviation of x-bar. Interpret your results in words.
b. Repeat part (a) with n = 100.