Use the table and the given regression equation to answer parts (a)-(e). X 3 1 20 -5 y = 1 - 2x 0 a. Compute the three s
Posted: Wed May 11, 2022 12:57 pm
- Use The Table And The Given Regression Equation To Answer Parts A E X 3 1 20 5 Y 1 2x 0 A Compute The Three S 1 (32.71 KiB) Viewed 22 times
Use the table and the given regression equation to answer parts (a)-(e). X 3 1 20 -5 y = 1 - 2x 0 a. Compute the three sums of squares, SST, SSR, and SSE, using the defining formulas. SST = (Type an integer or a decimal.) SSR = (Type an integer or a decimal.) SSE = (Type an integer or a decimal.) b. Verify the regression identity, SST = SSR + SSE. Is this statement correct? No Yes c. Determine the value of r?, the coefficient of determination. R=(Round to four decimal places as needed.) d. Determine the percentage of variation in the observed values of the response variable that is explained by the regression. % (Round to two decimal places as needed.) e. State how useful the regression equation appears to be for making predictions. O A. Moderately useful O B. Not useful O c. Very useful