Plant growth data

A plant fertilizer manufacturer wants to develop a formula of fertilizer that yields the most increase in the height of plants. To test fertilizer formulas, a scientist prepares three groups of 50 identical seedlings: a control group with no fertilizer, a group with the manufacturer's fertilizer, named GrowFast, and a group with fertilizer named SuperPlant from a competing manufacturer. After the plants are in a controlled greenhouse environment for three months, the scientist measures the plants' heights.

You can use this data to demonstrate Boxplot, Interval Plot, and other analyses that compare distributions.

Worksheet column Description Variable type
Fertilizer The fertilizer used: None, GrowFast (the test fertilizer), or SuperPlant (the competitor's fertilizer) Factor
Height The height of the plant Response
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