Why is the required sample size larger

Reference no: EM131167622

The sample size formula for a confidence interval for the population mean requires an estimate of the population standard deviation.

Intuitively, why is this the case? Specifically, why is the required sample size larger if the population standard deviation is larger?

Reference no: EM131167622

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Why is the required sample size larger : The sample size formula for a confidence interval for the population mean requires an estimate of the population standard deviation.- why is the required sample size larger if the population standard deviation is larger.

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