7.2 In an experiment to determine the effect of four experimental diets on the growth of pigs of both sexes, 32 pigs were allocated to four randomized blocks, with eight pigs of each sex in each block.Within each block, one pig of each sex, chosen at random, was allocated to each diet. The weight (kg) of each animal was recorded on nine occasions at weekly intervals. The first and last few rows of the spreadsheet holding the data are presented in Table 7.9: the complete data set is held in the file ‘PigGrowth.xlsx’ on this book’s website

(see Preface).