why use a normal distribution in a data set what is the standard deviation for the t distribution what is the standard deviation versus the t distribution used to estimate population mean? why would you use the t distribution for sample standard deviation when do you use the mean for a t distribution why use t distribution when a sample size is large what is the t distribution how to use a t distribution when sample size is large why not use t distribution when sample size is large how to use t distribution why not use the t distribution why use a t distribution why use normal distribution what is the statistical term for the sample size? how to use an t distribution why use t distribution in math why use t distribution for sample size why use a normal distribution for an estimate when can you use the normal distribution to estimate the t distribution for a test when should the t distribution be used to estimate the mean