HP 33S User Manual

16–8 Statistics Programs
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
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
t
U
to
undo (remove) the last data pair. If you discover that you made an error after
step 4, press
t
U. In either case, continue at step 3.
6. After all data are keyed in, press
t
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
x
ˆ
,
y
ˆ
–estimation routine.
10. If you wish to estimate
y
ˆ
based on x, key in x at the

value prompt, then
press
¥
to see
y
ˆ
(

).
11. If you wish to estimate
x
ˆ
based on y, press
¥
until you see the

value
prompt, key in
y, then press
¥
to see
x
ˆ
(

).
12. For more estimations, go to step 10 or 11.
13. For a new case, go to step 2.
Variables Used:
B
Regression coefficient (y–intercept of a straight line); also
used for scratch.
M Regression coefficient (slope of a straight line).
R Correlation coefficient; also used for scratch.
X The x–value of a data pair when entering data; the
hypothetical
x when projecting
y
ˆ
; or
x
ˆ
(x–estimate)
when given a hypothetical
y.
Y The y–value of a data pair when entering data; the
hypothetical
y when projecting
x
ˆ
; or
y
ˆ
(y–estimate)
when given a hypothetical
x.
i Index variable used to indirectly address the correct
x
ˆ
–,
y
ˆ
–projection equation.
Statistics registers
Statistical accumulation and computation.

HP 33S Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Silver
Digits	10 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157 x 16 x 81 mm