u
This test is used to test for an unknown proportion of successes. The
|
|
| x | – p0 | p0 | : expected sample proportion | |
Z = |
|
| n | ||||
|
|
|
|
| n | : size of sample | |
|
|
|
|
| |||
|
|
|
|
|
p0 (1– p0)
n
Perform the following key operations from the statistical data list.
3(TEST)
1(Z)
Prop ............................ | sample proportion test conditions (“Gp0” specifies |
| test, “< p0” specifies lower |
| |
p0 ................................. | expected sample proportion (0 < p0 < 1) |
x .................................. | sample value (x >0 integer) |
n .................................. | size of sample (positive integer) |
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.
Calculation Result Output Example
PropG0.5 .................... | direction of test |
z ................................... | z score |
p .................................. | |
pˆ .................................. | estimated sample proportion |
n .................................. | size of sample |
• For details about graph screen function keys 1(Z) and 2(P), see “Z Test Common Functions” on page
#[Save Res] does not save the Prop condition in line 2.
20050401