In an agricultural experiment, the effects of two fertilizers on the production of limes were measured. Fourteen randomly selected plots of land were treated with a brand new fertilizer, and 18 randomly selected plots were treated with an old fertlizer. The number of pounds of harvested limes were measured from each plot. The results are given below. (Round answers to two decimal places.) New F.  Old F. 498 429 485 428 469 427 481 421 472 412 475 419 488 431 468 436 460 415 469 428 475 417 471 437 476 437 470 420   416   426   427   419 Find a 99% confidence interval for the difference between the mean weight of the harvested limes.margin of error: lower limit: upper limit:

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