n an agricultural experiment, the effects of two fertilizers on the production of oranges were measured. Fourteen randomly selected plots of land were treated with fertilizer A, and 10 randomly selected plots were treated with fertilizer B. The number of pounds of harvested fruit was measured from each plot. Following are the results.  Fertilizer A 473   507   526   479   477   468   516  467   519   523   483   540   518   488 Fertilizer B 455   501   470   420   483   419   468   476   459   513 Assume that the populations are approximately normal. Construct a 95% confidence interval for the difference between the mean yields for the two types of fertilizer. Interpret the results.

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