Flags Used:

Flag 0 is set if a natural log is required of the X input. Flag 1 is set if a natural log is required of the Y input.

If flag 1 is set in routine N, then I001 is executed. If flag 1 is clear, G001 is executed.

Program instructions:1.Key in the program routines; press when done.2.Press and select the type of curve you wish to fit by pressing:Sfor a straight line;Lfor a logarithmic curve;Efor an exponential curve; orPfor a power curve.3.Key in x–value and press .4.Key in y–value and press .

5.Repeat steps 3 and 4 for each data pair. If you discover that you have made an error after you have pressed in step 3 (with the value prompt still visible), press again (displaying the value prompt) and press

Uto undo (remove) the last data pair. If you discover that you made an error after step 4, press U. In either case, continue at step 3.

6.After all data are keyed in, press Rto see the correlation coefficient, R.7.Press to see the regression coefficient B.8.Press to see the regression coefficient M.9.Press to see the value prompt for the xˆ, yˆ–estimation routine.

10.If you wish to estimate yˆ based on x, key in x at the value prompt, then press to see yˆ ().

11.If you wish to estimate xˆ based on y, press until you see the value prompt, key in y, then press to see xˆ ().

12.For more estimations, go to step 10 or 11.16-8Statistics Programs