Refer to Exercise 10.44. Suppose that the grape farmers in the states of California, Michigan, and Washington were provided with information about the effectiveness of IPM by the county agents, whereas the farmers in the remaining states were not.
a. Is there significant evidence that providing information about IPM is associated with a higher adoption rate?
b. Discuss why or why not your conclusion in part (b) provides justification for expanding the program for county agents to discuss IPM with grape farmers to other states.