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Mathematics, 05.05.2020 09:40, mjlchance367
Soy bean type 1 yielded 125 bushels per acre last year at a research farm. This year, soy bean type 2, planted in the same location, yielded only 100 bushels per acre and there was a drought. The researchers do not know whether the difference is a result of the superiority of type 1 soy beans or the drought. What is this an example of?
A - Bias
B - Matched-pairs design
C - The placebo effect
D - Confounding variable
E - Replication
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Answers: 2
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Soy bean type 1 yielded 125 bushels per acre last year at a research farm. This year, soy bean type...
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