For our experiment, we will be looking at which types of soil and how much sunlight produce the tallest sunflower plants. Our experimental units are 30 sunflower plants. After doing a simple random sample, 10 plants will be planted in soil, 10 plants in fertilizer, and 10 plants in sand. Within each of these groups, a simple random sample will be conducted to choose 5 plants to get full sun and 5 plants to get half sun. The material that the sunflowers are planted in and the amount of sunlight each plant gets are the factors, or explanatory variables in out experiment. In the past, we have always planted sunflowers in soil and they have received full sun, so that treatment will serve as our control group. After 1 month, we will measure the height of the plants in centimeters to look at the response variables.
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