describe the mean difference that is the main effect for the treatment
https://academicpapers.net/wp-content/uploads/2020/08/LOGO-300x75.png00Lizhttps://academicpapers.net/wp-content/uploads/2020/08/LOGO-300x75.pngLiz2021-08-23 00:00:232021-08-23 00:00:23describe the mean difference that is the main effect for the treatment