# What Is the T Test?

A 'T' test can be defined as a statistical test that is used to infer the differences between two mean values or between a normal value and an unknown standard deviation. It may also be used to find the deviation between a target value and a known mean. It is normally used in reference to populations.
T-test
A normal distribution plays a prominent role in tests of hypothesis that involve the mean of a population. In particular, if a random sample of observations is normally distributed, statistical inferences for the sample mean can be made by More »
Source: healthline.com
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In statistics, a t-test is what the distribution will be if a student's null hypothesis is true. The usual form for t-test statistics is T=Zls. ...
In statistics, a t-test is what the distribution will be if a student's null hypothesis is true. The usual form for t-test statistics is T=Zls. ...
In statistics, a t-test is what the distribution will be if a student's null hypothesis is true. The usual form for t-test statistics is T=Zls. ...