When is the t-distribution used instead of the normal distribution for constructing confidence intervals? | QuantalphaAlgorithms

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When is the t-distribution used instead of the normal distribution for constructing confidence intervals?

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When is the t-distribution used instead of the normal distribution for constructing confidence intervals?

Dennise Lyn Asuncion

Best Answer

The t-distribution is used when the sample size is small (usually n<30) and the population standard deviation is unknown.