Question: An agricultural experiment designed to assess differences in yields of corn for four different varieties, using three different fertilizers, produced the results (in bushels per

An agricultural experiment designed to assess differences in yields of corn for four different varieties, using three different fertilizers, produced the results (in bushels per acre) shown in the following table:

a. Prepare the two-way analysis of variance table.
b. Test the null hypothesis that the population mean yields are identical for all four varieties of corn.
c. Test the null hypothesis that population mean yields are the same for all three brands of fertilizer.

Variety Fertilizer A 92 91 81 93 2

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