16-8 Statistics Programs
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:
S for a straight line;
L for a logarithmic curve;
E for an exponential curve; or
P for 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
U to 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
R to 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 , –estimation routine.
10. If you wish to estimate based on x, key in x at the value prompt, then
press
to see ().
11. If you wish to estimate based on y, press
until you see the value
prompt, key in y, then press
to see ().
12. For more estimations, go to step 10 or 11.
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