Question: “You want to determine the best color for attracting cereal leaf beetles to boards on which they will be trapped. You will compare four colors: blue, green, white, and yellow. The response variable is the count of beetles trapped. You will mount one board on each of 16 poles evenly spaced in a square field, with four poles in each of four rows. Sketch the field with the locations of the 16 poles. Outline the design of a completely randomized experiment to compare the colors. Randomly assign colors to the poles, and mark on your sketch the color assigned to each pole. Use table B and start at line 115.” (hint: use same method as in exercise 3.13 treated in class).

* Diagram of experimental design: 8 points

* Use of Table B for randomization and color assignments: 8 points.