Given the following, detcrmine the regression equation of (i) x, on x, and .r, (ii) x, on x, and x, '12 = 0.8 o, = 10 %3D 'a= 0.6 0, = 8 = (0.5 "23 o, = 5. %3D

Given the following five points: (-2,0),(-1,0),(0,1)(1,1) and (2,3). if the regression equation is Y' = 2-0.4X, What is the value of Y' when X =-3?

A set of X and Y scores has SSX = 5, SSY = 7.5, and SP = 15. The regression equation for these scores will have a slope constant of 2.   true or  false?

Assume a person got score of 32.5 on Test A and a score of 95.25 on Test B. Using the regression equation (B' = 2.3A + 9.5), what is the error of prediction for this person?

What is the value of y' when x=3, if the equation of the regression line is y=23.1 - 3.8x ?

A set of n=10 pairs of X and Y scores has SSx=10, SSy=60, and SP=20. What is the slope of the regression equation for these scores?

5

Please solve using R

27) Below is some of the regression output from a regression of the price of a copier (expressed in $'s) based on the speed (pages per minute) and whether it copies in color or not (color=0 if it does NOT copy in color and =1 if it does copy in color) A copier manufacturer is trying to decide how much to charge for their new copier. Based on the regression output, if a printer can print 4.8 pages per minute and copies in color, what is the predicted price? *please round to 2 decimal places*

The estimated regression equation for a model involving two independent variables and 10 observations follows. ý = 29.1370 + 0.5103x, + 0.4980x2 (a) Interpret b, in this estimated regression equation. O b, = 0.5103 is an estimate of the change in y corresponding to a 1 unit change in x, when x, is held constant. O b, = 29.1370 is an estimate of the change in y corresponding to a 1 unit change in x, when x., is held constant. O b, = 0.4980 is an estimate of the change in y corresponding to a 1 unit change in x, when x, is held constant. O b, = 0.4980 is an estimate of the change in y corresponding to a 1 unit change in x, when x, is held constant. O b, = 0.5103 is an estimate of the change in y corresponding to a 1 unit change in x, when x, is held constant. Interpret b, in this estimated regression equation. O b, = 0.4980 is an estimate of the change in y corresponding to a 1 unit change in x, when x, is held constant. O b, = 0.4980 is an estimate of the change in y corresponding to a…