Casio FX-CG20 AU - 1-Sample Z Test; 2-Sample Z Test

6-35
u 1-Sample Z Test
This test is used when the population standard deviation is known to test the hypothesis. The
1-Sample Z Test is applied to the normal distribution.
Perform the following key operations from the List Editor.
3(TEST)
1(Z)
1(1-SAMPLE)
The following shows the parameter data specification items that are different from list data
specification.
Calculation Result Output Example
μ ≠ 11.4 .......... direction of test
s
x
.................. Displayed only for Data:List setting.
• [Save Res] does not save the
μ condition in line 2.
u 2-Sample Z Test
This test is used when the standard deviations for two populations are known to test the
hypothesis. The 2-Sample Z Test is applied to the normal distribution.
Perform the following key operations from the List Editor.
3(TEST)
1(Z)
2(2-SAMPLE)