FTEST function
Returns the result of an F-test. An F-test returns the two-tailed probability that the variances in array1 and array2 are not significantly different. Use this function to determine whether two samples have different variances. For example, given test scores from public and private schools, you can test whether these schools have different levels of test score diversity.
Syntax
FTEST(array1, array2)Square brackets indicate optional arguments.
Arguments
| Argument | Required | Meaning |
|---|---|---|
| array1 | Yes | Required. The first array or range of data.A1:A4 |
| array2 | Yes | Required. The second array or range of data.B1:B4 |
Try FTEST
Read the legacy FTEST function name
=FTEST(A2:A5,B2:B5)FTEST is the compatibility name corresponding to F.TEST. Adding a constant to every observation changes the mean but not the variance. These two samples have equal sample variances, so the two-sided variance-test p-value is 1. That does not prove the population variances are identical. Use the modern name when creating a new formula; the old spelling is useful when reading existing workbooks.
Inspect the current formula
Read its written arguments or observe actual operation values in a separate local calculation. This action neither applies a draft nor grades an answer.
Read the formula, one argument at a time
Explore the written function calls and their inputs. The calculation result belongs to the complete formula.
FTEST · top-level call
=FTEST(A2:A5,B2:B5)Follow the cells behind a result
Read explicit local references and helper formulas using a separate calculation. Your draft stays in this field; the worksheet and practice checks do not change.
The worksheet runs locally. Published checks apply to the supplied example only. Native Excel and Google Sheets compatibility remain unverified.
Reference and compatibility
Univer 1.0.4 / Apache-2.0. Calculation checks cover the supplied examples only. The browser worksheet does not implement every Excel feature, external service or connected data type.