Functions > Statistics > Descriptive Statistics > Example: F-Test
  
Example: F-Test
Use the Ftest function to test the hypothesis that two samples are drawn from distributions having the same variance.
1. Define a data set and create a vector for each batch of the experiment.
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2. Plot the data for the two batches.
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3. Apply the Ftest function on the data.
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The first value returned by Ftest is the F-statistic. You can compare the F-statistic to critical values representing different levels of significance, as found in tables of F-statistics, to test if the distributions have the same variance.
There is a 38% probability that if the samples have the same variance, the F-statistic is equal or larger, in absolute terms, to the current value of f.