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What Is Analysis Of Variance And T Test?

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T-random variable is the ratio between a standardized normal variate to the square root of an independently distributed chi square variate divided by its degree of freedom. T-ransom variable is test statistics which is used to test he significance difference between two population means. The test in which t-random variable is used as test statistics is known as student t- test.

Analysis of variance is process of resolving the total variation into its separate components that measure different sources of variations. When it is required to test the significance of difference between more than two population means at a time, then we use analysis of variance.

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