Link to problem: https://dl.dropbox.com/u/5819251/Cost%20Estimation.docx
In this video series we discuss cost behaviour.
Part 1: Linearity and the relevant range
Part 2: High Low Method
Part 3: Scattergraph Method
Part 4: Least Squares Regression Method in Excel
This video and the attached worksheet were prepared by Tony Bell of Thompson Rivers University (TRU) - I encourage educators to freely use, edit and modify these videos and the attached worksheet - they are available under Creative Commons Licenses.