Question

An experiment is performed to test the difference in effectiveness two methods cultivating wheat: A total of 12 patches of ground are treated with shallow plowing and 14 with deep plowing The average yield per ground area of the shallow plowing group is 45.2 bushels and the average yield for the deep plowing group 48.6 bushels. Suppose it is known that shallow plowing results in ground yield having standard deviation of 0.8 bushels while deep plowing results in standard deviation of .0 bushels. At the 0.05 leve of significance researcher wants to test the given data ifit is consistent with the hypothesis that the mean yield is the same for both methods What is the variable of interest of the study? Methods of cultivating wheat b. Number of patches per ground area f wheat Yield per ground area of wheat d. Types of wheat

          An experiment is performed to test the difference in effectiveness two methods cultivating wheat: A total of 12 patches of ground are treated with shallow plowing and 14 with deep plowing The average yield per ground area of the shallow plowing group is 45.2 bushels and the average yield for the deep plowing group 48.6 bushels. Suppose it is known that shallow plowing results in ground yield having standard deviation of 0.8 bushels while deep plowing results in standard deviation of .0 bushels. At the 0.05 leve of significance researcher wants to test the given data ifit is consistent with the hypothesis that the mean yield is the same for both methods What is the variable of interest of the study? Methods of cultivating wheat b. Number of patches per ground area f wheat Yield per ground area of wheat d. Types of wheat

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