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*<math>x</math> is the value to test.
*<math>x</math> is the value to test.
*<math>sigma</math> is the standard deviation of the population.
*<math>sigma</math> is the standard deviation of the population.
==Description==
==Description==
*[[Manuals/calci/NORMSINV | NORMSINV ]]
*[[Manuals/calci/NORMSINV | NORMSINV ]]
*[[Manuals/calci/STANDARDIZE | STANDARDIZE ]]
*[[Manuals/calci/STANDARDIZE | STANDARDIZE ]]
==References==
==References==
*[http://en.wikipedia.org/wiki/Z-test Z-test]