1. Three groups of pigs each were fed individually three different feeds for a specified length of time. The observed weight gains in pounds are, respectively, as follows: feed 1: 194.1 182.8 187.4 feed 2: 216.6 203.5 216.9 feed 3: 178.1 189.2 181.3 a) Are the mean weight gains for these feeds the same? Test at 0.05 significance level. Provide the 6-step procedure, use RR and p-value approaches. b) /Minitab) Use Minitab to create the boxplots for multiple comparisons. Include the boxplots and comment on which means are the same, which are different and why. c) (Minitab) Get the appropriate Tukey simultaneous confidence intervals in Minitab. Include the corresponding grouping information and the plot of the simultaneous CIs. Comment on which means are the same, which are different and why