Data was recorded of the number of hours middle school students watched TV before the final exam and their scores on the final exam- see the first 2 columns below (X and Y). The results of the Regression output (using MS Excel) is shown on the right hand side under ?summary output?

Per the regression model, for every 10 additional hours of TV watched:

A. A student will score 10 additional points

B. It won't make any difference to the score.

C. Score will fall by approximately 5

D. Score will fall by approximately 32 points

Transcribed Image Text:

HOURS WATCHING TV (X) 10 20 20 23 8 7 15 13 11 18 16 9 NENU 2 15 21 19 2 SCORE ON EXAM OUT OF 100 (Y) 73 35 40 30 80 80 50 60 70 40 50 67 95 8888: 50 40 40 98 SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error Observations ANOVA Regression Residual Total 0.985746644 0.971696446 0.970124026 3.705652783 df 20 1 18 19 SS MS F 8485.776474 8485.776474 617.9625265 247.1735259 13.73186255 8732.95 Intercept 101.4943442 HOURS WATCHING TV (X) -3.195547533 Coefficients Standard Error t Stat Significance F 2.19002E-15 P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% 1.807912284 56.13897592 1.1424E-21 97.6960614 105.2926269 97.6960614 105.2926269 0.128547671 -24.85885208 2.19002E-15 -3.465616168 -2.925478898 -3.465616168 -2.925478898 HOURS WATCHING TV (X) 10 20 20 23 8 7 15 13 11 18 16 9 NENU 2 15 21 19 2 SCORE ON EXAM OUT OF 100 (Y) 73 35 40 30 80 80 50 60 70 40 50 67 95 8888: 50 40 40 98 SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error Observations ANOVA Regression Residual Total 0.985746644 0.971696446 0.970124026 3.705652783 df 20 1 18 19 SS MS F 8485.776474 8485.776474 617.9625265 247.1735259 13.73186255 8732.95 Intercept 101.4943442 HOURS WATCHING TV (X) -3.195547533 Coefficients Standard Error t Stat Significance F 2.19002E-15 P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% 1.807912284 56.13897592 1.1424E-21 97.6960614 105.2926269 97.6960614 105.2926269 0.128547671 -24.85885208 2.19002E-15 -3.465616168 -2.925478898 -3.465616168 -2.925478898

Answer rating: 100% (QA)

D Score will fall by approximately 32 points From ... View the full answer