4. Arizona chamber of commerce announced that the median sale price of new houses sold in Arizona in 2011 was $221,000 and the mean sale price was $272,400. Assume that the standard deviation of the prices is $90,000. a) If you select samples of n = 2, describe the shape of the sampling distribution of If you select samples of n = 100, describe the shape of the sampling distribution of If you select a random sample of n = 100, what is the probability that the sample mean will be less than $300,000. If you select a random sample of n = 100, what is the probability that the sample mean will be between $275,000 and $290,000