Refer to the Real Estate data, which report information on the homes sold in Goodyear, Arizona, last year.
a. At the .05 significance level, can we conclude that there is a difference in the mean selling price of homes with a pool and homes without a pool?
b. At the .05 significance level, can we conclude that there is a difference in the mean selling price of homes with an attached garage and homes without an attached garage?
c. At the .05 significance level, can we conclude that there is a difference in the mean selling price of homes in Township 1 and Township 2?