test for proving there is no difference what test could i use to prove that my change did not affect the mean? what testing is used to test for a significant difference between two measures of an organism? what would a t-test test to prove that the mean and mean of a measure have no difference what test can i use to prove two means have no difference? which test can you use to test for the difference between two means? what is the normal difference between mean and median what testing is used to test for the difference between two means? what test would i use to prove two means have no difference which is the best test to prove the difference between two means what is the test for proving the difference between mean and mean why do you test the difference between two means? how to test for a difference between two different means? test to prove that two means have no difference what test is used to find the difference between two means what test would you use to prove that a change has no effect on a mean? what tests are used to test the difference between the mean, mean, and mean why does a test for a dif when can a mean test be used to find a difference what test would be used for proving a change to mean?