20070201
u 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 coeffi cients of the data for the
regression formula y = a + bx . It also determines the correlation coeffi cient and t value, and
calculates the extent of the relationship between x and y .
a : intercept
b : slope of the line
n : size of sample ( n > 3)
r : correlation coeffi cient
r
2
: coeffi cient of
determination
Perform the following key operations from the statistical data list.
3 (TEST)
2 (t)
3 (REG)
The following shows the meaning of each item in the case of list data specifi cation.
β
&
ρ
............................ p-value test conditions (“G 0” specifi es two-tail test, “< 0”
specifi es lower one-tail test, “> 0” specifi es upper one-tail
test.)
XList ............................. list for
x -axis data (List 1 to 26)
YList ............................. list for
y -axis data (List 1 to 26)
Freq .............................. frequency (1 or List 1 to 26)
Save Res ......................list for storage of calculation results (None or List 1 to 26)
Execute ........................executes a calculation
After setting all the parameters, use c to move the highlighting to “Execute” and then press
the function key shown below to perform the calculation.
• 1 (CALC) ... Performs the calculation.
b =
Σ
( x – o)( y – p)
i=1
n
Σ
(x – o)
2
i=1
n
a = p – bo t = r
n – 2
1 – r
2
b =
Σ
( x – o)( y – p)
i=1
n
Σ
(x – o)
2
i=1
n
a = p – bo t = r
n – 2
1 – r
2
# You cannot draw a graph for LinearReg t Test.
6-5-16
Tes ts
