A car was driven 24 different times with different octane levels. Using the output from the regression, give a 82% confidence interval for the effect of octane on the car. Use 3 decimal places. Simple...

A car was driven 24 different times with different octane levels. Using the output from the regression, give a 82% confidence interval for the effect of octane on the car. Use 3 decimal places.


Simple linear regression results:
Dependent Variable: mileage
Independent Variable: octane
mileage = -50.657546 + 0.9122631 octane
Sample size: 24
R (correlation coefficient) = 0.7165
R-sq = 0.5134
Estimate of error standard deviation: 1.7101924








Parameter estimates: