DAFTest
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Function Description
Returns the results of an Ftest applied to two
series designed to identify if the two have different variances, given the null
hypothesis that they are drawn from normal distributions with the same
variance.
The output has 7 rows and 2 columns (for Rows 1 to 4, ignore
second column entry for Rows 5 to 7):

Row 1: means

Row 2: (sample) variances

Row 3: numbers of observations in each series

Row 4: numbers of degrees of freedom for each series

Row 5: F statistic

Row 6: Probability of statistic being less than Fstatistic if
null hypothesis applies, for onetail test

Row 7: Critical value of statistic for given level of alpha
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Output type / Parameter details

Illustrative spreadsheet

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Computation units used
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