One Sample Z-Test Calculator

A one sample z-test is used to test whether or not the mean of a population is equal to some value when the population standard deviation is known.
To perform a one sample z-test, simply fill in the information below and then click the “Calculate” button.

z = 0.3232

p-value (one-tailed) = 0.1245

p-value (two-tailed) = 0.3232

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