How To Calculate Population Variance On Ti84 Plus. Estimating a population mean (σ unknown) dr. I know how to do it by hand but it becomes tedious when there's a lot of data values.
In other words, you calculate the factorial for n, and then divide that by. Laura schultz statistics i when the population standard deviation (σ) is not known (as is generally the case), a confidence interval estimate for a population mean (μ) is constructed using a critical value from the student’s t distribution. Then enter the values of the dataset in column l1:
