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Why do we use the pooled variance in calculations of independent sam.pdf

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Why do we use the pooled variance in calculations of independent samples t-statistics and ANOVAs Solution we use the pooled variance in calculations of independent samples t-statistics and ANOVAs because different groups have same variance of population and the only way to have an estimate of real variance it to club all the individual estimate we get from each group..

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Why do we use the pooled variance in calculations of independent samples t-statistics and ANOVAs Solution we use the pooled variance in calculations of independent samples t-statistics and ANOVAs because different groups have same variance of population and the only way to have an estimate of real variance it to club all the individual estimate we get from each group.

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  • 1. Why do we use the pooled variance in calculations of independent samples t-statistics and ANOVAs Solution we use the pooled variance in calculations of independent samples t-statistics and ANOVAs because different groups have same variance of population and the only way to have an estimate of real variance it to club all the individual estimate we get from each group.