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Quantitative Usability, Statistics & Six Sigma by Jeff Sauro



Statistics Questions & Answers

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There is an answer for this Question Want a sample size of about 60 (30 controls and 30 cases). At 5% significance and 80% power.How do i determine the standard deviation and mean difference.And how do i arrive at the 60? my study design is case-control.
There is an answer for this Question How to determine the sample size for comparing mulltiple parameters like Height , weight, Blood pressure , Blood parameters like blood glucose, total cholesterol, etc in two different populations?