Publication date: 11/10/2021

Use the One Sample Standard Deviation calculator to evaluate sample size for a hypothesis test about one standard deviation. Sample size and power are associated with the following hypothesis test:

versus the one-sided alternative:

where σ is the population standard deviation and σ0 is the hypothesized value. The difference to detect is an amount, δ, away from σ0 that one considers as important to detect based on a set of samples.

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