Need help with homework problem #3! Please answer thoroughly and show work! Thank you!

3. Four different growth hormones were applied to plants and their growth in inches measured after six weeks, giving the following measurements: Hormone 1: 13, 17, 7, 14, 15, 10 Hormone 2: 21, 13, 20, 16, 22 Hormone 3: 18, 15, 20, 17, 11 Hormone 4: 7, 11, 18, 20, 10, 8 Perform a nonparametric test using ranks, to see if these 4 hormones affect plants the same way or differently (use @2005). (15)