The city council of Logcabin, Vermont, has just finished an experimental program intended to provide information that can ultimately increase the production of maple syrup, the staple industry of the town. Under the program, two samples of 100 maple trees were selected at random from nearby forests. Trees in the experimental samples were injected with nutrients, while trees in the second, control sample were not. At the end of the maple syrup season, the output of the two samples of trees was measured in terms of gallons of syrup yielded. The results follow.
Based on these data, should the city council conclude that the production of syrup increased?
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