4) To study how plants respond to the environment, a researcher randomly assigns 500 plants to one of three groups: an auditorily-enriched environment (N=175), a
4) To study how plants respond to the environment, a researcher randomly assigns 500 plants to one of three groups: an auditorily-enriched environment (N=175), a visually-enriched environment (N=150), and a 'typical' environment (N=175). He then measures their growth after six months. In order to nd out if there were differences in average growth after six months, he conducts an ANOVA using an alpha level of 0.01. The SS between for his analysis was 2564.2, and the 55 within was 523.4. a. Fill in the rest of the ANOVA table for the researcher's analysis. Sum of Squares Df Mean Square F Between Within Total b. New conduct the four steps of hypothesis testing using an alpha level of .01. c. Write the result in APA style d. What is the effect size for the result? Is it small, medium, or large? (Numeric value required for credit.) 5) There are some situations in which you have to use an ANOVA instead of an independent samples t test. Describe such a situation. Make sure to include enough detail that it is clear why you could not conduct an independent samples t test
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