Homework Sourse8 value 1000 points Required information Calculate the value
8.
value:
10.00 points
Required information
Calculate the value of r. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)
| Consider the following prices and accuracy ratings for 27 stereo speakers. |
Solution
The regression analysis gives following results.
From above we can clearly see that the value of r is 0.105.
| SUMMARY OUTPUT | ||||||||
| Regression Statistics | ||||||||
| Multiple R | 0.105 | |||||||
| R Square | 0.011 | |||||||
| Adjusted R Square | -0.029 | |||||||
| Standard Error | 176.789 | |||||||
| Observations | 27 | |||||||
| ANOVA | ||||||||
| df | SS | MS | F | Significance F | ||||
| Regression | 1 | 8723.735 | 8723.735 | 0.279 | 0.602 | |||
| Residual | 25 | 781355.895 | 31254.236 | |||||
| Total | 26 | 790079.6296 | ||||||
| Coefficients | Standard Error | t Stat | P-value | Lower 95% | Upper 95% | Lower 95.0% | Upper 95.0% | |
| Intercept | 733.441 | 766.840 | 0.956 | 0.348 | -845.895 | 2312.777 | -845.895 | 2312.777 |
| Accuracy | -4.615 | 8.735 | -0.528 | 0.602 | -22.605 | 13.375 | -22.605 | 13.375 |
