3. (Oehlert, Problem 8.5} Pine oieoresin is obtained by tapping the trunks of pine trees. Tapping is done by cutting a hole in the bark and collecting the resin that oozes out. This experiment compares four "' shapes for the holes and the efcacy of acid treating the holes. Twentyfour pine trees are selected at random from a plantation, and the 24 trees are assigned at random to the eight combinations of whole shape (circular, diagonal slash, check, rectangular} and acid treatment (yes or no). The response is total grams of resin collected from the hole (data from low and Bin Mohd. Ali 1935). Hole Shape Circle Diagonal Check Rectangle Control 9 43 50 77 13 43 55 70 12 57 70 91 Acid 15 55 75 97 13 58 73 103 20 73 90 99 Analyze this data using a factorial model. Include a conclusion about the ideal hole shape and treat ment