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Testing a Claim about Mean: Known Population SD

Testing a Claim about Mean: Known Population SD

A complete procedure of testing the hypothesis about a population mean is explained here.
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...

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Related Experiment Video

Updated: Apr 15, 2026

Boldness, Aggression, and Shoaling Assays for Zebrafish Behavioral Syndromes

Boldness, Aggression, and Shoaling Assays for Zebrafish Behavioral Syndromes

Published on: August 29, 2016

Response to Zanini et al

Joseph Ahn¹, Jorge Marrero¹, Rajender K Reddy¹

¹OHSU-Medicine, Portland, Oregon, USA.

The American Journal of Gastroenterology

|April 9, 2015

Summary

No abstract available in PubMed .

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