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Four brands of fertilizer were evaluated. Each brand was applied to each six plots of land containing soils of different types. Percentage increases in corn yields were then measured for the 24 brand-soil-type combinations. The results obtained are summarized in the accompanying table.Source of Variation     Sum of SquaresBetween fertilizers          135.6Between soil types           81.7Error                               111.3a. Complete the analysis of variance table.b. Test the null hypothesis that population mean yield increases are the same for the four fertilizers.c. Test the null hypothesis that population mean yield increases are the same for the six soil types.

Four brands of fertilizer were evaluated. Each brand was applied to each six plots of land containing soils of different types. Percentage increases in corn yields were then measured for the 24 brand-soil-type combinations. The results obtained are summarized in the accompanying table.Source of Variation     Sum of SquaresBetween fertilizers          135.6Between soil types           81.7Error                               111.3a. Complete the analysis of variance table.b. Test the null hypothesis that population mean yield increases are the same for the four fertilizers.c. Test the null hypothesis that population mean yield increases are the same for the six soil types.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 3CYU
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Four brands of fertilizer were evaluated. Each brand was applied to each six plots of land containing soils of different types. Percentage increases in corn yields were then measured for the 24 brand-soil-type combinations. The results obtained are summarized in the accompanying table.
Source of Variation     Sum of Squares
Between fertilizers          135.6
Between soil types           81.7
Error                               111.3

a. Complete the analysis of variance table.
b. Test the null hypothesis that population mean yield increases are the same for the four fertilizers.
c. Test the null hypothesis that population mean yield increases are the same for the six soil types.

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