20010101
u
uu
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LinearReg
t
Test
LinearReg
t
Test
treats paired-variable data sets as (
x
,
y
) pairs, and uses the method of
least squares to determine the most appropriate
a
,
b
coefficients of the data for the
regression formula
y
=
a
+
bx
. It also determines the correlation coefficient and
t
value, and
calculates the extent of the relationship between
x
and
y
.
b
=
Σ
(
x
–
o
)(
y
–
p
)
i
=1
n
Σ
(
x
–
o
)
2
i
=1
n
a
=
p
–
b
o
t
=
r
n
– 2
1 –
r
2
a
: intercept
b
: slope of the line
n
: size of sample (n
>
3)
r
: correlation coefficient
r
2
: coefficient of
determination
Perform the following key operations from the statistical data list.
3
(TEST)
c
(T)
d
(LinReg)
The following shows the meaning of each item in the case of list data specification.
β
&
ρ
............................ p-value test conditions (“
G
0” specifies two-tail test, “< 0”
specifies lower one-tail test, “> 0” specifies upper one-tail
test.)
XList ............................ list for
x
-axis data (List 1 to 20)
YList ............................ list for
y
-axis data (List 1 to 20)
Freq ............................. frequency (1 or List 1 to 20)
Save Res ..................... list for storage of calculation results (None or List 1 to 20)
Execute ....................... executes a calculation
After setting all the parameters, align the cursor with [Execute] and then press the function key
shown below to perform the calculation.
•
1
(CALC) ... Performs the calculation.
# You cannot draw a graph for LinearReg
t
Test.
1-2-16
Tests (TEST)
20011101