when do you do a comparison between two statistics when do you do a comparison with null data what is null distribution what would approximate a null distribution do null distributions equal null or no when to do a comparison test from null how do you approximate null distribution? how to approximate null distributions when to approximate null distribution how to do a null distribution comparison test how to approximate a null distribution do you compare two null distributions what does null mean in statistics when do you compare null distributions can you do the null distribution in a statistical test how to do null distribution comparison do the statistics compare null distributions why do i need a comparison between two statistically different data sets to check for null distributions when using null distributions in statistics how to do a comparison between different stats