5.2 Deriving a Confidence Interval for the Mean

I derive the appropriate formula for a confidence interval for the population mean mu, when sampling from a normally distributed population with a known value of sigma. (The purpose of this video is to show the rationale behind the confidence interval formula for mu.) I do not work through an example in this video; I … Read more

5.3 Intro to Confidence Intervals for One Mean (Sigma Known)

An introduction to confidence intervals for the population mean mu. These methods are appropriate when we are sampling from a normally distributed population, where the population standard deviation sigma is known. When the population standard deviation is not known, as is usually the case, we need to use a slightly different method (a method based … Read more