solve B.

The owner of a moving company has collected data to predict how many labor hours a move will take based on the number of cubic feet moved. The data below has been collected from 20 moves. The results are displayed in the accompanying table, and the regression equation and other values are shown below. Use this information to complete parts (a) through (c) below. Y; = - 0.4719 + 0.0485X;, _ Y, = 515.75, _ Y? = 14,498.3125, _ X;Y, = 300,180 1 =1 i - X 1 =1 Moving Data Click the icon to view the data table. a. Determine the coefficient of determination, r, and interpret its meaning. Cubic Feet Moved Labor Hours 671 26.50 2 = 0.8470 (Round to four decimal places as needed.) 384 17.25 What is the meaning of the coefficient of determination? 374 16.75 623 24.25 A. It is the proportion of the variation in the number of cubic feet moved that is explained by the variability in labor hours. 460 21.25 B. It measures the variability in the number of cubic feet moved from the predicted number of cubic feet moved. 780 40.25 690 35.25 C. It measures the variability in the actual labor hours from the predicted labor hours. 355 19.50 D. It is the proportion of the variation in labor hours that is explained by the variability in the number of cubic feet moved. 364 23.00 649 34.25 b. Determine the standard error of the estimate. 434 23.50 Syx =(Round to four decimal places as needed.) 475 20.00 440 19.25 750 36.25 395 16.75 594 32.75 842 40.75 513 23.00 465 18.75 571 26.50