STA 204 TUTORIAL QUESTIONS FOR 2017/2018 SESSION

In an effort to determine whether a new type of fertilizer is more effective than the type currently in use, researchers took 12 two-acre plots of land scattered throughout the country. Each plot was divided into two equal-size subplots, one of which was treated with the current fertilizer and the other was treated with the new fertilizer. Wheat was planted, and the crop yields were measured as shown below