Ij]s i, Dhmsmhqjh, H3]hœ]has – HP SmartCalc 300s User Manual
Page 19: G]í^^axy)h, M(a)s, A(b)s, Ai(x)s
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Reg Sub-menu (
bhüd
m (STAT) m (Reg))
^1»!ill». When you want to obtain this:
menu Item:
f
CD
A
Regression coefficient constant term A
Q] B
Regression coefficient B
(Sr
Correlation coefficient r
0]*
Estimated value of X
CUJi'
Estimated value of y
Linear Regression Calculation:
* Examples all use the data input in this table;
X
y
X
y
1.0
1.0
2.1
1.5
1.2
1.1
2.4
1.6
1.5
1.2
2.5
1.7
1.6
1.3
2.7
1.8
1.9
1.4
3.0
2.0
_____________ — ___ lil"VAR 2îA+BX
ISHIFT llMOD@(^r3l(STATl ^(OFFl 3: +C>P 4:lnX
mmmsm .y,
E](A+BX) ms
mHíssmHíss
asC“
®®IJ]S i|
i\
□DHmsmHQjH
□]H3]HŒ]Has
mHmsmHíss
[SHIFT im(STAT) a](Sum)
®(Ex^S
ISHIFT im(STAT) [g(Var)
S]{xon)0
g]í^^axY)H
ISHIFT
imfSTAT)
H(Reg)
m(A)s
[SHIFT
imfSTAT)
H(Reg)
a(B)s
[SHTFnmíSTAT) 0(Reg)[3](r)S
*1 r^rSHlFnmíSTAT) ^(Reg)
ai(x)s
*2 [^ISHIFT imíSTAT) H(Reg)
1:Ex2
3:Ey2
5:i:xy
7Xxiy
2:Ex
4:i;y
6:EÍ3
8:Ex<
STAT
Exy
m
30.96
1: n
3;XOn
5:7
7:
2:x
4:X0ft-i
6:yon
STAT
xan
a
0.63
1: minX
3:miny
2: maxX
4:maxy
STAT
maxy
B
2
1:A
3:r
5:p
2;B
4:^
0.5043587805
0.4802217183
0.9952824846
3x
5.196852046I
1.4648022171
* 1 Estimated Value ( y=3—>
=?)
*2 Estimated Value (x=2^ y =?)
53
Commands when Quadratic Regression
Caicuiation (_+CX’)is Seiected
With quadratic regression, regression is performed in
accordance with the following model equation.
y=A+ex+cx=
For example:
A=^-B(^-C(^^)
D SxyS;A^SxVSx;^
Sx)cSx^)^-{Sx)(f
r' S^^Sxx-SxySxj^
SxxS;?;?-(Sx;^2
SxX^xL^i"
Sxx=^x3-Sj^
Sx“y=Ex')^^4^
01 -B+JB^ACIA-y]
X I - 2C
An_-B-^B2-4C(A-y)
xz- 2C
^A+6x+Cx*
Reg Sub-menu
(
shift
im
^TAT)[s(Reg))
Select this
menu Hem!
mA
®B
aC
Sx1
ax2
a
y
When you wont to obtain this:
Regression coefficient constant term A
Linear coefficient B of the regression
coefficients
Quadratic coefficient C of the
regression coefficients
Estimated value ofxi
Estimated value of x2
Estimated value of >
-5T