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In: Statistics and Probability

A new fertilizer was developed to increase crop yields by 5 bu.acre-1 over that of an...

A new fertilizer was developed to increase crop yields by 5 bu.acre-1 over that of an old fertilizer. Crops were grown in 9 pairs of test plots with each pair of plots selected for identical environmental conditions. Analyze and interpret the data (units, bu.acre-1).

plot 1 2 3 4 5 6 7 8 9
old fertilizer 60.6 66.6 64.9 61.8 61.7 67.2 62.4 61.3 56.7
new fertilizer 67.4 72.8 68.4 66.0 70.8 69.6 67.2 68.9 62.6

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