Returns the result of the F test. The f-test returns the single-tail probability when the variance of array 1 and array 2 is not significantly different. You can use this function to determine
Whether the variance of the two samples is different. For example, given the test scores of public and private schools, it is possible to examine the extent to which test scores differ between schools.
grammar
FTEST(array1,array2)
Array1 Specifies the first array or data area.
Array2 Second array or data area.
Instructions
A parameter can be a number, or a name, array, or reference containing a number.
■ If the array or reference parameter contains text, logical values, or blank cells, these values are ignored; But cells that contain zero values are counted.
■ If the number of data points in array 1 or array 2 is less than 2, or if the variance of array 1 or array 2 is zero, FTEST returns the error value #DIV/0! .
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