A homeowner purchases 2160 square feet from an adjacent lot. Construct a confidence interval of 95% for the change in the value of her house. The 95% confidence interval for the effect of lot size on price is ( nothing, nothing) (in thousands of dollars). (Round your responses to two decimal places.) Lot size is measured in square feet. Do you think that another scale might be more appropriate?

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.