An Agronomist Hopes That A New Fertilizer She Has Developed Will Enable Grape Gr

An agronomist hopes that a new fertilizer she has developed will enable grape growers to increase the yeild of each grapevine by more than 5 pounds. TO test this fertilizer she applied it to 44 vines and used the traditional growing strategies on 47 other vines. The fertlized vines produced a mean of 58.4 pounds of grapes with standard deviation 3.7 pounds, while the unfertilized vines yeiled an average of 52.1 pounds with standard deviation 3.4 pounds of grapes. Do these experimental results comfirm the agronomist’s expecations?

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