ŷ = 17.6 + 3.8º1 – 2.32 + 7.6x3 + 2.7x4 For this estimated regression equation SST = 1805 and SSR = 1772. 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 2 decimals)? Use Table 4 in Appendix B. What is the p-value? - Select your answer - Using a = 0.05, what is your conclusion? - Select your answer -

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Chapter1: Starting With Matlab
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d. Use an F test and a = 0.05 to determine whether *1 and x4 contribute significantly to the model.
What is the value of the F test statistic (to 2 decimals)? Use Table 4 in Appendix B.
What is the p-value?
- Select your answer -
What is your conclusion about the two variables ai and x4?
|- Select your answer -
>
Transcribed Image Text:d. Use an F test and a = 0.05 to determine whether *1 and x4 contribute significantly to the model. What is the value of the F test statistic (to 2 decimals)? Use Table 4 in Appendix B. What is the p-value? - Select your answer - What is your conclusion about the two variables ai and x4? |- Select your answer - >
In a regression analysis involving 30 observations, the following estimated regression equation was obtained.
ŷ = 17.6 + 3.8xi – 2.3x2 + 7.6x3 + 2.7x4
For this estimated regression equation SST = 1805 and SSR = 1772.
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 2 decimals)? Use Table 4 in Appendix B.
What is the p-value?
- Select your answer
Using a = 0.05, what is your conclusion?
- Select your answer -
Suppose variables a1 and x4 are dropped from the model and the following estimated regression equation is obtained.
ŷ = 11.1 – 3.6x2 + 8.1æ3
For this model SST = 1805 and SSR = 1,705.
b. Compute SSE(x1, x2, X3, T4).
(to 1 decimal, if necessary)
c. Compute SSE(x2, x3).
(to 1 decimal, if necessary)
Transcribed Image Text:In a regression analysis involving 30 observations, the following estimated regression equation was obtained. ŷ = 17.6 + 3.8xi – 2.3x2 + 7.6x3 + 2.7x4 For this estimated regression equation SST = 1805 and SSR = 1772. 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 2 decimals)? Use Table 4 in Appendix B. What is the p-value? - Select your answer Using a = 0.05, what is your conclusion? - Select your answer - Suppose variables a1 and x4 are dropped from the model and the following estimated regression equation is obtained. ŷ = 11.1 – 3.6x2 + 8.1æ3 For this model SST = 1805 and SSR = 1,705. b. Compute SSE(x1, x2, X3, T4). (to 1 decimal, if necessary) c. Compute SSE(x2, x3). (to 1 decimal, if necessary)
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