288
k
k
k
k
k
Other Tests
u
u
u
u
u
!
2
Test
!
2
Test
sets up a number of independent groups and tests hypotheses related to
the proportion of the sample included in each group. The
!
2
Test is applied to
dichotomous variables (variable with two possible values, such as yes/no).
expected counts
F
ij
=
&
n
&
x
ij
i
=1
k
"
&
x
ij
j
=1
n
: all data values
!
2
=
& &
F
ij
i
=1
k
(
x
ij
–
F
ij
)
2
j
=1
For the above, data must already be input in a matrix using the
MAT
Mode
.
Perform the following key operation from the statistical data list.
3
(TEST)
3
(CHI)
Next, specify the matrix that contains the data. The following shows the meaning
of the above item.
Observed ........ name of matrix (A to Z) that contains observed counts (all cells
positive integers)
Execute .......... executes a calculation or draws a graph
The matrix must be at least two lines by two columns. An error occurs if the
matrix has only one line or one column.
Example
To perform a
!
2
Test on a specific matrix cell
For this example, we will perform a
!
2
Test for Mat A, which
contains the following data.
Mat A =
1
4
5 10
1
(Mat A)
c
1
(CALC)
18 - 6
Tests
Summary of Contents for CFX-9970G
Page 22: ... CFX 9970G ...
Page 452: ...435 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 453: ...436 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 454: ...437 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 455: ...438 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 458: ...441 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...