HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 268
HP 33s - Scientific Calculator Manual
UPC - 082916001456
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5. Repeat steps 3 and 4 for each data pair. If you discover that you have made an error after you have pressed g in step 3 (with the &@value prompt still visible), press g again (displaying the %@value prompt) and press X U to undo (remove) the last data pair. If you discover that you made an error after step 4, press X U. In either case, continue at step 3. 6. After all data are keyed in, press X R to see the correlation coefficient, R. 7. Press g to see the regression coefficient B. 8. Press g to see the regression coefficient M. 9. Press g 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 g to see yˆ (&@). 11. If you wish to estimate xˆ based on y, press g until you see the &@value prompt, key in y, then press g to see xˆ (%@). 12. For more estimations, go to step 10 or 11. 13. For a new case, go to step 2. Variables Used: B M R X Y i Statistics registers Regression coefficient (y-intercept of a straight line); also used for scratch. Regression coefficient (slope of a straight line). Correlation coefficient; also used for scratch. The x-value of a data pair when entering data; the hypothetical x when projecting yˆ ; or xˆ (x-estimate) when given a hypothetical y. The y-value of a data pair when entering data; the hypothetical y when projecting xˆ ; or yˆ (y-estimate) when given a hypothetical x. Index variable used to indirectly address the correct xˆ -, yˆ -projection equation. Statistical accumulation and computation. 16-8 Statistics Programs