Test Correlation
If you need to decide whether the observed correlation between two numeric attributes would likely be observed even if there were really no correlation, choose Hypothesis Test from the Analyze menu, then choose Test Correlation from the popup. If you know the count and correlation, you can enter these values directly by editing the blue text. Otherwise drag two numeric attributes into the slots at the top of the test. Note: The illustration at right was made in "non-verbose" mode using the Verbose command in the Test menu. Fathom computes the t-statistic and then the probability that it would be observed if the correlation were really zero. |
Note that in using this test you are not making any claim that one variable depends on another; just that they are correlated.