MS 150 Statistics Quiz 11 • Name:
Time (hours) | Distance (km) |
0.0 | 0.0 |
0.5 | 4.0 |
0.7 | 5.2 |
0.8 | 6.4 |
1.4 | 11.1 |
2.3 | 17.8 |
- ______________ Determine the slope of the linear regression (best fit line) for the data.
- ______________ Determine the y-intercept of the linear regression for the data.
- ______________ Use the slope and intercept to calculate the predicted distance after one hour of running.
- ______________ Use the slope and intercept to calculate the predicted time to run 16 kilometers.
- ______________ Does the relationship appear to be linear, non-linear, or random (no relationship)?
- ______________ Determine the correlation coefficient r.
- ______________ Is the correlation positive or negative?
- ______________ Is the correlation none, weak, moderate, strong, or perfect?
- ______________ Determine the coefficient of determination.
- ______________ What percent in the variation in time accounts for the variation the distance?
- ______________ What is the average speed of the runner in kilometers per hour?