1. math regression analysis

please solve 4-6

please show all steps

1. (5 points) Fill the blank a, b, c, d, e in the above table. 2. (2 points) Calculate the total variation. 3. (5 points) Fill the Analysis of variance table for the last model y=0+1x1+2x2+3x3+4x4+. 4. (2 points) Find the best model based on adjusted R2. 5. (2 points) Find the best model based on ^2. 6. (5 points) Let =0.05, implement an F-test: H0:1=3=4=0,Ha: At least one of 1,3, and 4 are not zero. 1. (5 points) Fill the blank a, b, c, d, e in the above table. 2. (2 points) Calculate the total variation. 3. (5 points) Fill the Analysis of variance table for the last model y=0+1x1+2x2+3x3+4x4+. 4. (2 points) Find the best model based on adjusted R2. 5. (2 points) Find the best model based on ^2. 6. (5 points) Let =0.05, implement an F-test: H0:1=3=4=0,Ha: At least one of 1,3, and 4 are not zero