3. In 2 types of fabric, certain products will be evaluated to remove stains. Product 1 is traditionally used by the company; while products 2 and 3 are from a house X and product 4 from a house Y. some of the results obtained are: FV GL SC CM FCAL Clothes BLOCKS Product A B 1 5 14 TREATMENTS 2 8 11 ERROR 3 8 4 6 10 TOTAL 20 56 a) Complete the information and perform the corresponding hypothesis test, with a = 0.05 and conclude according to the context of the exercise b) If there is a difference between the effects of treatments, determine which treatments are different with = 0.05 and conclude c) What is the best product?