which test is used for when an information set is normally distributed and an histogram is not normally distributed? when to use paired-t test how to test for distribution of data when data is not normally distributed why use a paired test and not normally distributed? when testing for histograms, how do you use paired test for a test why test before and after data for a paired test when can paired test be used? why do we use a paired t-test with data? when to use a paired t test when data is not normally distributed can paired t test show data are not normally distributed when testing for data distribution, a histogram is required to determine when does the paired t test fail what would show when the data is not normally distributed when is a histogram used in a paired t test what test do you use if the data is normally distributed? when can you test a data set using paired tests why paired test how to test for normal distribution which test would you use to test that data is normally distributed when t test for histogram