Z-test
Calculates the z-Test of two data samples.
For more information on Z-tests, refer to the corresponding Wikipedia article.
Data
Variable 1 range: The reference of the range of the first data series to analyze.
Variable 2 range: The reference of the range of the second data series to analyze.
Results to: The reference of the top left cell of the range where the test will be displayed.
Results for z-Test:
The following table shows the z-Test for the data series above:
|
z-test |
||
|
Alpha |
0.05 |
|
|
Hypothesized Mean Difference |
0 |
|
|
Variable 1 |
Variable 2 |
|
|
Known Variance |
0 |
0 |
|
Mean |
16.9230769231 |
20.4615384615 |
|
Observations |
13 |
13 |
|
Observed Mean Difference |
-3.5384615385 |
|
|
z |
#DIV/0! |
|
|
P (Z<=z) one-tail |
#DIV/0! |
|
|
z Critical one-tail |
1.644853627 |
|
|
P (Z<=z) two-tail |
#DIV/0! |
|
|
z Critical two-tail |
1.9599639845 |