This applet allows users to drag sliders to change the confidence level and sample size. The applet helps users visualize the meaning of the phrase "C% confidence," by showing that C% of the samples ...

This web calculator allows users to specify the number of subjects in the "exposed" and "control" groups with positive and negative outcomes. After providing the data, the calculator will show a table ...

For comparison of proportions, there are three commonly used measurements: the difference, the relative risk, and the odds ratio. Significant effort has been spent on exact confidence intervals for ...

The end points of a confidence interval for the noncentrality parameter of noncentral χ 2 or F are identified as upper and lower percentage points of a distribution. It is shown how these can be ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...