This class continued my education on designing experiments, and we were again tasked with designing, carrying out, and analyzing an experiment. My group investigated the growth of green onions in soil over a two-week period. The factors studied were the amount of water and the amount of plant food, and our response variable being the growth of each green onion (in centimeters). Thus, we were investigating what combination of amount of water and amount of plant food maximizes the growth of a green onion. The optimization of the factors affecting growth were carried out using a rotatable central composite design with uniform precision, which allowed for the fitting of the full quadratic model. After compiling our results, although we found that neither the amount of water nor the amount of plant food has a significant effect on the green onions’ growth over a two-week period, optimum conditions to maximize growth the green onions was found to be 5.07 cm when the amount of water was 272.43 mL and the amount of plant food was 5.41 grams.