3. The anaesthetic data provides the time to restart breathing unassisted in recovering from general anaesthetic for four treatment groups. (You may need to read related sections in Chapter 15 of our textbook "One Factor Models".) (a) Produce a boxplot depicting the data. Comment on any features of interest. (b) make an appropriate stripchart of the data. (c) Fit a one-factor model for the recovery times and test for a difference between the two groups. (d) Try the Box-Cox transformation method. Explain what went wrong. (e) Try a square root transformation on the response. Are the diagnostics satisfactory? Is there a significant difference among the treatment groups