Pre-Activity: Experimental Design Review This activity helps you to review the key features of a designed experiment. For each case study, identify the following: the response variable, the experimental units, the factor(s), the levels of the factor(s), the number of treatments, whether blocking was applied and, if so, the blocking variable. An experiment aimed to investigate how diet from birth could affect the weight of an adult pig. A sample of 24 pigs were randomly assigned to four different diets shortly after birth. Below are the weights (in kg) of the pigs after one year: Diet 1 37 42 45 49 50 45 Diet 2 49 40 39 50 41 38 Diet 3 33 34 40 38 47 36 Diet 4 41 48 40 42 38 41 1. What is the Factor? (a) pig (b) weight in kg, after one year (c) diet type 2. Now many levels are here for the factor? (a) 1 (b) 2 (c) 3 (d) 4 (e) 6 3. Is there blocking in this experiment? (a) Yes (b) No 1