providing accurate calculations for 13+ years!
Calculator: Significance of the Difference between Two Slopes
Significance of the Difference between Two Slopes Calculator
This calculator will determine whether the slopes of two lines are significantly different from each other, given the slope, standard error, and sample size for each line. Values returned from the calculator include the probability value, the t-value for the significance test, and the degrees of freedom. A probability value of less than 0.05 indicates that the two slopes are significantly different from each other.
Please enter the necessary parameter values, and then click 'Calculate'.