Casio FX-9750G PLUS User's Manual & Technical Reference page 317

k k k k k Other Tests
u u u u u χ
Test
2
χ
Test sets up a number of independent groups and tests hypotheses related to
2
the proportion of the sample included in each group. The χ
dichotomous variables (variable with two possible values, such as yes/no).
expected counts
For the above, data must already be input in a matrix using the MAT Mode.
Perform the following key operations 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
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.
To perform a χ
Example
For this example, we will perform a χ
contains the following data.
Mat A =
1(Mat A)c
1(CALC)
k
Σ
×
x
ij
i=1
F =
ij
k
ΣΣ
i=1 j=1
(x
k
Σ Σ
χ
2
=
i =1 j =1
positive integers)
Test on a specific matrix cell
2
1 4
5 10
Test is applied to
2
Σ
x
ij
j=1
x
ij
2
– F )
ij ij
F
ij
Test for Mat A, which
2
18 - 6
Tests
289