Question: The study was conducted to assess the weight increase in chickens among different types of feeds (food). Six different feeds were evaluated: casein, horsebean, linseed, meatmeal, soybean, and sunflower. Groups of chickens fed the same diet were weighted and weight recorded in lbs. There were a total of 71 groups of chickens:

casein horsebean linseed meatmeal soybean sunflower

N: 12 10 12 11 14 12 Total= 71

Test the null hypothesis that the mean weights are identical for each type of chicken feed. If necessary, carry out a multiple comparison procedure.