How to Calculate 95% Confidence Interval for a Test's Sensitivity?

Answer The sensitivity of a test is the percentage of individuals with a particular disease or characteristic correctly identified as positive by the test. Tests with high sensitivity are useful as screen... Read More »

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How to Calculate Confidence Interval?

A confidence interval is an indicator of your measurement's precision. It is also an indicator of how stable your estimate is, meaning that if you repeat your survey, your result will be close to y... Read More »

How to Find a Confidence Interval for the True Mean Using Excel 2007?

The confidence interval for a true mean represents the range above or below the survey mean in which the true average is likely to be, based on the data. For example, if you conduct a survey of a s... Read More »

What sample size is needed so that the 95% confidence interval will have a width of 0.06 solution?

Sample size is calculated using confidence interval and the width of the solution as a percent of the mean. A sample at 95 percent confidence with a solution width of 0.06 percent would require 2,6... Read More »

How to Calculate Class Interval?

Any data set accumulated for statistical purposes, such as the U.S. census, contains information that needs to be summarized and aggregated. It'd be impossible to list the attributes such as income... Read More »