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ZTEST

ZTEST function in Excel: One-tailed z-test probability.

Excel functions / Compatibility
Compatibility function · Excel

ZTEST function

One-tailed z-test probability.

Availability

PlatformStatus
ExcelListed
Google SheetsListed
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Microsoft keeps this function for older workbooks. A newer version is usually the better choice.
Reference entry. Syntax, tested examples and a practice file arrive with the full guide. Open the official function list.