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    Comparing three different slopes between three regression lines

    Hi all, I hope the thread is in it's place. I wanted to compare slopes between three different simple regression lines. The three data sets have the same x (time) and y (measured value) variables but each data set have gone through a different treatment and so the intercept and the slopes are...
  2. D

    Comparing three coefficients

    Hi all, I hope the thread is in it's place. I wanted to compare slopes between three different simple regression lines. The three data sets have the same x (time) and y (measured value) variables but each data set have gone through a different treatment and so the intercept and the slopes are...