how to test for a difference of the average and median of two distributions how to tell if i have a two distributions what would the difference of a difference of a normal distribution indicate what is the difference mean stdev what is the threshold for the stdev test? what is a difference of the mean and mean how to calc a difference of the means how to determine if the second or third distribution is not abnormal how to compare two distributions in a tr test how to check the difference of a distribution stdev of distribution of difference of the means how to test two distributions to determine difference of means if a first distribution is normal what is the difference of the mean and stdev if the first test is positive for a variable, would you still test it for a null hypothesis? what is the difference of the means in a normal distribution what is the value of the difference of the means in a comparison of two distributions? stdev of difference of the means is ________. how do you test for the null hypothesis if a stdev test for 2nd distribution is not normally distributed can this be the case? what is the significance of a difference of difference between the mean and median