Sharp EL-9600 manual Other Regressions, Steps for calculating other regression models

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NAME _____________________________________________________ CLASS __________ DATE __________

9.1

OTHER REGRESSIONS

Steps for calculating other regression models

Copyright © 1998, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.

1. Access the data entry screen and delete old data. Enter the following data set:

XY

6 10

22 19

34 31

42 39

45 47

48 58

47 66

2.Check the data you have entered and correct any errors you may find.

3.Set up the scatter diagram.

4.Display the scatter diagram for the data by pressing WINDOW and setting Xmin = 0, Xmax = 50, Xscl = 5, Ymin = 0, Ymax = 70, and Yscl = 5. Press GRAPH to view the scatter diagram.

5.To find the best-fitting exponential curve (Y = a•ebX) for the data, press

STAT , touch D REG, touch ➧ on the screen, double touch 10 Rg_aebx, and press ENTER .

6. To view the overlay of the regression curve and the scatter diagram, press Y= CL VARS , touch H STAT, press ENTER , touch B REGEQN, double touch 1 RegEqn, and press GRAPH .

7. Repeat this process to find and view other regression models.

82 Blackline Masters/STATISTICS USING THE SHARP EL-9600