Casio fx-3800P - Regression Analysis Fundamentals

Ex.)
Find
n,
¥
&
Q,
ns
based
on
the
data:
1.2,
—0.9,—1.5,
2.7,
—0.6,
0.5,
0.5, 0.5, 0.5,
7-2
Regression
analysis
1.3,
1.3,
1.3,
0.8,
0.8,
0.8,
0.8,
0.8.
*
Set
the
function
mode
to
“LR”
by
pressing
fag).
OPERATION
READ-OUT
®
Linear
regression
“SD”
Formula:
—
=
A+B
SD”
aan
12
GD
sagEM
ay
x
;
=
—
MeUxy
—
UxeLy
©
(Mistake)
205a@
Beet
ae?
@
(To
correct)
A
=
2¥—
BErx
10
50m
nn
207
&a
.
ne
zxy
—
Sx
Ly
@
(Mistake)
V
[m-dx?
—
(Ex)?}
{n-xry?
—
(ry)?}
®
(Mistake)
16mm
[1.6
J
|
;
Ex.)
Results
from
measuring
the
length
and
temperature
of
a
steel
bar.
Strocoree)
—_ae@
[1.8
oswen
|
-08
a
@
(Tocorrect)
20
76H)
|
1005
~
asa
[05
1010
1008
sq
[
1014
@iMiscke)
=
104
@®
(To
correct)
ie
ee
=
Oe
Find
the
constant
term
(A),
regression
coefficient
(B),
correlation
coefficient
(r)
and
estimated
values
(%,
7)
using
the
above
figures
as
a
basis.
ecu
ecite
p
‘
:
OPERATION
READ-OUT
oea
{08
©
Mistake
a
“UR
1oge
[10
©
To
core
Gomeana
[oa]
1oosem
[1003]
Cseasom/
os
|
15
531005
0m
cam
[17]
205510108
0.635294117
25
231008
Gy)
SHIFT
0.95390066
30
Go.
101
4
(vata)
SHIFT)
(A)
SHIFT,
SHIFT
(When
the
temp.
is
18°C)
186)
(When
the
length
is
1000
mm)
1000GHFN
@)
Note:
£x?,
Dx,
n,
Ly?,
Ly,
Uxy,
X,
xOn,
XOna,
V,
YOn,
VOn1;
A,
B
andr
are
respectively
obtained
by
pressing
a
numeral
key
((@J
to
(S))
after
the
ka
or
key,
-—27-
—28-—