Casio fx-9860G SD User Manual page 318

u u u u u 2-Prop Z Test
This test is used to compare the proportion of successes. The 2-Prop
the normal distribution.
Z =
p(1 – p )
Perform the following key operation from the statistical data list.
3(TEST)
1(Z)
4(2-P)
p
................................. sample proportion test conditions ("G
1
x
................................. data value (
1
n
................................. size (positive integer) of sample 1
1
x
................................. data value (
2
n
................................. size (positive integer) of sample 2
2
Save Res .................... list for storage of calculation results (None or List 1 to 26)
Execute ....................... executes a calculation or draws a graph
After setting all the parameters, use c to move the highlighting to "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.
6-5-8
Tests
x x
1 2
–
n n
1 2
1 1
+
n n
1 2
p
test, "< " specifies one-tail test where sample 1 is smaller
2
than sample 2, ">
is greater than sample 2.)
x > 0 integer) of sample 1
1
x > 0 integer) of sample 2
2
20050401
Z
Test is applied to
x
: data value of sample 1
1
x
: data value of sample 2
2
n
: size of sample 1
1
n
: size of sample 2
2
ˆ p
: estimated sample proportion
p
" specifies two-tail
2
p
" specifies one-tail test where sample 1
2