The following minitab output relates to a house having 2,000 square feet and a rating of 8. new obs fit se fit 95% ci 95% pix 1 158.475 6.59 (145.634, 171.316) (124.526, 192.424) (a) report a point estimate of and a 95 percent confidence interval for the mean sales price of all houses having 2,000 square feet and a rating of 8. (round your answers to 3 decimal places.) (b) report a point prediction of and a 95 percent prediction interval for the actual sales price of an individual house having 2,000 square feet and a rating of 8. (round your answers to 3 decimal places.)