10. The data on the number of minutes that patients had to wait for their appointment with 5 doctors. Doctor A B C D E 21 9 18 9 29 20 11 17 11 30 21 15 16 28 24 30 12 15 30 26 28 18 20 15 25 Test if there is significant difference among the waiting times Assume Normal distribution .19 The following data show the number of bedrooms, area of the lot and the prices at which & one-family cottages were sold in a certain sub-division: Area in Square Number of Prices Meters Bedrooms XI y 1.5 200 16 250 10 180 0.9 160 20 230 2.1 300 1.5 250 2.1 300 Find a the quation which will enable us to predict the average sale price of one family cottage in a given subdivision in terms of the area in square meters and the number of bedrooms. What it the price of the collage if it is 450 square meters and has a bedrooms