Question

are these right?

Consider the following data for a dependent variable y and two independent variables, 31 and 22. 94 108 112 179 95 175 170 118 143 211 Round your all answers to two decimal places. Enter negative values as negative numbers, if necessary. a. Develop an estimated regression equation relating y to X1. ŷ = 44.62 + 1.95 21 Predict y if x1 = 45. ŷ = 132.37 b. Develop an estimated regression equation relating y to 22. ŷ = 135 + 0.286 32 Predict y if X2 = 15. y = 139.29 c. Develop an estimated regression equation relating y to 21 and 22. ŷ = 45.2 + 1.9721 21 + 0.073 22 Predict y if x1 = 45 and 22 = 15. ŷ = 132.76

Answer 1

-PRACOCK PAGE NO. DATE: Solution No, it is not right answers. I am using r-softwere following results. we get the ted regression equatiogn relating ŷ = 44.62 + logs 21 ŷ if xi= 45 y=132.37 by an estimated regression equation y tox2 is equation relating relating = 83.11 + 4.3822 ŷ if X2 .15 ŷ = 148.8) cy an estimated regressim equation relating y to x and X₂ is L ý = -17.97 + loggxit 4.63 X2 and X2= if x,- 45 Tŷ = 141.03 15

R RGui (32-bit) File Edit View Misc Packages Windows Help R Untitled - R Editor y=c(94,108,112,179,95, 175, 170, 118, 143, 211) xl=c(30,46,25,51,41,52,74,37, 60, 76) x2=c(12,11,17,17,5,19,7,13,13,17) regl=1m (y xl);regl reg2-1m (y-2);reg2 reg3=1m (Y™x1+x2);reg3