A common science-fair project involves testing the effects o…
A common science-fair project involves testing the effects of music on the growth of plants. For one of these projects, a sample of 24 newly sprouted bean plants is obtained. A researcher is interested in how music and watering schedule may influence plant growth. Plants are broken into 4 groups. For the watering schedule, plants are either watered during the morning or at night. For music, the plants are exposed to either classical music or rock. These plants are randomly assigned to one of four groups, with 6 plants in each group. After two weeks, the height of each plant is measured and recorded. What test will tell you whether the type of music played or the watering schedule affects plant growth?
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