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5-60.

At Frucht Orchards, apple trees produce an average of pounds of fruit per tree with a standard deviation of pounds. Their mango trees produce an average of pounds of fruit per tree with a standard deviation of pounds. Frucht Orchards is trying two new fertilizers. An apple tree fed Amazing Apples Fertilizer yielded pounds of fruit, while a mango tree fed Amazing Mangos Fertilizer yielded pounds of fruit. Which new fertilizer appears to be more “amazing”? Homework Help ✎

How many standard deviations above the mean is each tree?