The following data on sale price, size, and land-to-building ratio for 10 large industrial properties appeared in a paper. Sale Price Size (millions Land-to- (thousands Building Property of dollars) of sq. ft.) Ratio 1 10.6 2167 2 2.6 751 30.6 2423 1.9 225 20.1 3916 7.9 2867 1698 1045 1109 404 3 4 5 6 7 8 9 10 10.2 6.7 5.8 4.6 2.1 3.4 3.5 4.7 1.6 2.3 3.0 (a) Calculate the value of the correlation coefficient between sale price and size. (Give the answer to three decimal places.) r = 4.8 7.5 17.3 (b) Calculate the value of the correlation coefficient between sale price and land-to-building ratio. (Give the answer to three decimal places.) r = Land-to-building ratio (c) If you wanted to predict sale price and you could use either size or land-to-building ratio as the basis for making predictions, which would you use? O Size X (d) Based on your choice in Part (c), find the equation of the least-squares regression line you would use for predicting y = sale price. (Give answers to three decimal places.) ŷ=
The following data on sale price, size, and land-to-building ratio for 10 large industrial properties appeared in a paper. Sale Price Size (millions Land-to- (thousands Building Property of dollars) of sq. ft.) Ratio 1 10.6 2167 2 2.6 751 30.6 2423 1.9 225 20.1 3916 7.9 2867 1698 1045 1109 404 3 4 5 6 7 8 9 10 10.2 6.7 5.8 4.6 2.1 3.4 3.5 4.7 1.6 2.3 3.0 (a) Calculate the value of the correlation coefficient between sale price and size. (Give the answer to three decimal places.) r = 4.8 7.5 17.3 (b) Calculate the value of the correlation coefficient between sale price and land-to-building ratio. (Give the answer to three decimal places.) r = Land-to-building ratio (c) If you wanted to predict sale price and you could use either size or land-to-building ratio as the basis for making predictions, which would you use? O Size X (d) Based on your choice in Part (c), find the equation of the least-squares regression line you would use for predicting y = sale price. (Give answers to three decimal places.) ŷ=
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.4: Cicumference And Area Of A Cicle
Problem 46E: A tabletop is semicircular when its three congruent drop-leaves are used. By how much has the tables...
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