Question: Comment on the goodness of fit of the model. The estimated regression equation for a...
Question: Comment on the goodness of fit of the model.
The estimated regression equation for a model involving two independent variables and 65 observations is:
yhat = 55.17+1.1X1 -0.153X2
Other statistics produced for analysis include: SSR = 12370.8, SST = 35963.0, Sb1 = 0.33, Sb2 = 0.20.
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Question: Comment on the goodness of fit of the model. The estimated regression equation for a...
Question: Compute F and use it to test whether the overall model is significant using a...
Question: Compute F and use it to test whether the overall model is significant using a p-value (α = 0.05). The estimated regression equation for a model involving two independent variables and 65 observations is: yhat = 55.17+1.1X1 -0.153X2 Other statistics produced for analysis include: SSR = 12370.8, SST = 35963.0, Sb1 = 0.33, Sb2 = 0.20.
In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the...
In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the following estimated regression equation was developed. yhat= 10 - 18x1+ 3x2+ 14x3 Also, the following standard errors and the sum of squares were obtained. Sb1= 3, Sb2= 6, Sb3= 7, SST = 4800 & SSE = 1296. At the 5% level, the coefficient of x1? Select one: a. cannot be tested, because not enough information is provided b. should be estimated again, because it...
The estimated regression equation for a model involving two independent variables and 10 observations follows. v=27.085...
The estimated regression equation for a model involving two independent variables and 10 observations follows. v=27.085 + 0.3331 + 0.604222 a. Interpret by and b2 in this estimated regression equation. bi Select your answer 02 Select your answer b. Estimate y when Z1 =180 and 22 = 310 (to 3 decimals). The exercise involving data in this and subsequent sections were designed to be solved using Excel. The following estimated regression equation is based on 30 observations. y = 17.2...
In a regression analysis involving 36 observations, the following estimated regression equation was developed. û =...
In a regression analysis involving 36 observations, the following estimated regression equation was developed. û = 10 - 5X1 + 4X2 +8.6X3 Also, the following standard errors and the sum of squares were obtained. Sb1 = 4 Sb2 = 2 Sb3 = 7 SST = 4,800 SSE = 1,296 When we increase X1 by 2 units and hold other things constant, Y on average will increase by 36 units U None of the rest increase by 5 units decrease by...
a. In a regression analysis involving 30 observations, the following estimated regression equation was obtained: y=17.6+3.8x1-2.3x2+7.6x3+2.7x4...
a. In a regression analysis involving 30 observations, the following estimated regression equation was obtained: y=17.6+3.8x1-2.3x2+7.6x3+2.7x4 For this estimated regression equation SST=1805, and SSR=1760. At α=0.05, test the significance of the relationship among the variables.
eBook Video In a regression analysis involving 30 observations, the following estimated regression equation was obtained....
eBook Video In a regression analysis involving 30 observations, the following estimated regression equation was obtained. 17.6+3.8z-2.3z +7.6z, +2.7z For this estimated regression equation SST- 1805 and SSR- 1,764. a. At a 0.05, test the significance of the relashionship among the variables. SSE (to 1 decimal, if necessary) MSR (to 1 decimal, if necessary) MSE (to 2 decimal if necessary) What is the value of the F test statistic (to 1 decimal)? Use Table 4 in Appendix B. What is...
In a regression analysis involving 30 observations, the following estimated regression equation was obtained. = 17.6...
In a regression analysis involving 30 observations, the following estimated regression equation was obtained. = 17.6 +3.821 -2.3x2 + 7.603 + 2.724 For this estimated regression equation SST = 1805 and SSR = 1,756. a. At a = 0.05, test the significance of the relashionship among the variables. SSE (to 1 decimal, if necessary) MSR (to 1 decimal, if necessary) MSE (to 2 decimals, if necessary) What is the value of the F test statistic (to 1 decimal)? Use Table...
In a regression analysis involving 30 observations, the following estimated regression equation w...
In a regression analysis involving 30 observations, the following estimated regression equation was obtained. y=17.6+3.8x1-2.3x2+7.6x3+2.7x4 For this estimated regression equation SST= 1805 and SSR=1756. a. At a= 0.05 , test the significance of the relationship among the variables. SSE=_________________ (to 1 decimal, if necessary) MSR=________________ (to 1 decimal, if necessary) MSE=+_______________ (to 2 decimals, if necessary) What is the value of the F test statistic (to 1 decimal)? _______________ What is the p-value? - Select your answer -less than .01,between...
In a multiple regression model involving 44 observations, the following estimated regression equation was obtained. ŷ=...
In a multiple regression model involving 44 observations, the following estimated regression equation was obtained. ŷ= 29 + 18x1 + 43x2 + 87x3 For this model, SSR = 600 and SSE = 400. The F statistic for the above model is 10 60 400 600
In a regression model involving 30 observations, the following estimated regression equation was obtained: 17+ 4x4...
In a regression model involving 30 observations, the following estimated regression equation was obtained: 17+ 4x4 - 3x2 + 8x3+8X For this model SSR = 700 and SSE - 100. The computed Fstatistic for testing the significance of the above model is 43.75 7.00 50.19 0.875
The estimated regression equation for a model involving two independent variables and 10 observations follows. v=27.085 + 0.3331 + 0.604222 a. Interpret by and b2 in this estimated regression equation. bi Select your answer 02 Select your answer b. Estimate y when Z1 =180 and 22 = 310 (to 3 decimals). The exercise involving data in this and subsequent sections were designed to be solved using Excel. The following estimated regression equation is based on 30 observations. y = 17.2...
In a regression analysis involving 36 observations, the following estimated regression equation was developed. û = 10 - 5X1 + 4X2 +8.6X3 Also, the following standard errors and the sum of squares were obtained. Sb1 = 4 Sb2 = 2 Sb3 = 7 SST = 4,800 SSE = 1,296 When we increase X1 by 2 units and hold other things constant, Y on average will increase by 36 units U None of the rest increase by 5 units decrease by...
eBook Video In a regression analysis involving 30 observations, the following estimated regression equation was obtained. 17.6+3.8z-2.3z +7.6z, +2.7z For this estimated regression equation SST- 1805 and SSR- 1,764. a. At a 0.05, test the significance of the relashionship among the variables. SSE (to 1 decimal, if necessary) MSR (to 1 decimal, if necessary) MSE (to 2 decimal if necessary) What is the value of the F test statistic (to 1 decimal)? Use Table 4 in Appendix B. What is...
In a regression analysis involving 30 observations, the following estimated regression equation was obtained. = 17.6 +3.821 -2.3x2 + 7.603 + 2.724 For this estimated regression equation SST = 1805 and SSR = 1,756. a. At a = 0.05, test the significance of the relashionship among the variables. SSE (to 1 decimal, if necessary) MSR (to 1 decimal, if necessary) MSE (to 2 decimals, if necessary) What is the value of the F test statistic (to 1 decimal)? Use Table...
In a regression model involving 30 observations, the following estimated regression equation was obtained: 17+ 4x4 - 3x2 + 8x3+8X For this model SSR = 700 and SSE - 100. The computed Fstatistic for testing the significance of the above model is 43.75 7.00 50.19 0.875
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