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Appendix: Use of Scientific Calculator and Excel

OLS Regression Equation:

Using Graphing Calculator such as TI-84

1. Press STAT 1

2. Enter data of dependent variable on L2 and that of independent variable on L1.

3. Press STAT and highlight CALC.

4. Press 4 for LinReg(ax + b), enter (L1, L2), and press Enter to compute.

The output gives the value of “b” or the intercept and the value of “a” or slope.