A common science-fair project involves testing the effects of music on the growth of plants. For one of these projects, a sample of 40 newly sprouted bean plants is obtained. These plants are randomly assigned to four treatments, with n = 10 in each group. The four conditions are rock, heavy metal, country, and classical music. The dependent variable is the height of each plant after 2 weeks. The data from this experiment were examined using an ANOVA, and the results are summarized in the following table. Begin by giving the first two steps of the hypothesis testing. After filling in the table, give your conclusion (whether to reject or fail to reject as well as a sentence about what that means according to the study). Finally, report eta2. Source SS df MS Between tx 72 ___ ___ F= Within tx ___ ___ 3 Total ___ ___
A common science-fair project involves testing the effects of music on the growth of plants. For one of these projects, a sample of 40 newly sprouted bean plants is obtained. These plants are randomly assigned to four treatments, with n = 10 in each group. The four conditions are rock, heavy metal, country, and classical music. The dependent variable is the height of each plant after 2 weeks. The data from this experiment were examined using an ANOVA, and the results are summarized in the following table. Begin by giving the first two steps of the hypothesis testing. After filling in the table, give your conclusion (whether to reject or fail to reject as well as a sentence about what that means according to the study). Finally, report eta2.
Source SS df MS
Between tx 72 ___ ___ F=
Within tx ___ ___ 3
Total ___ ___
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