How to find a least squares regression line Often the questions we ask require us to make accurate predictions on how one factor affects an outcome. If a teacher is asked to work out how time spent ...

How to find a least squares regression line Often the questions we ask require us to make accurate predictions on how one factor affects an outcome. If a teacher is asked to work out how time spent ...

A linear regression trend line is shown for reference. (The regression line is produced by plotting the series a second time using the regression interpolation feature of the SYMBOL statement. Refer ...