20010101
u
uu
u
u
2-Prop
Z
Test
This test is used to compare the proportion of successes. The
2-Prop
Z
Test
is applied to the
normal distribution.
Z
=
n
1
x
1
n
2
x
2
–
p
(1 –
p
)
n
1
1
n
2
1
+
x
1
: data value of sample 1
x
2
: data value of sample 2
n
1
: size of sample 1
n
2
: size of sample 2
ˆp
: estimated sample proportion
Perform the following key operation from the statistical data list.
3
(TEST)
b
(Z)
e
(2-Prop)
p
1
................................. sample proportion test conditions (“
G
p
2
” specifies two-tail
test, “<
p
2
” specifies one-tail test where sample 1 is smaller
than sample 2, “>
p
2
” specifies one-tail test where sample 1
is greater than sample 2.)
x
1
................................. data value (
x
1
>
0 integer) of sample 1
n
1
................................. size (positive integer) of sample 1
x
2
................................. data value (
x
2
>
0 integer) of sample 2
n
2
................................. size (positive integer) of sample 2
Save Res ..................... list for storage of calculation results (None or List 1 to 20)
Execute ....................... executes a calculation or draws a graph
After setting all the parameters, align the cursor with [Execute] and then press one of the
function keys shown below to perform the calculation or draw the graph.
•
1
(CALC) ... Performs the calculation.
•
6
(DRAW) ... Draws the graph.
Calculation Result Output Example
1-2-8
Tests (TEST)
20011101
