Imagine conducting an experiment where we randomly assigned
Imagine conducting an experiment where we randomly assigned moderately depressed people to one of three conditions: targeted acupuncture general acupuncture (like a placebo), and Prozac. The subjects went through their treatment for six weeks. After the six weeks each study participant took the Beck Depression Inventory (lower scores means less depressed). When we analyze the data the amount of random error (within-group variability) will be an important factor in determining whether or not the results will be statistically significant. Review the SPSS printout that shows the results of the one-way ANOVA and answer the following questions: What is your decision about the overall null hypothesis? Select a or b. Reject H0 Fail to reject H0 Are there any treatment groups significantly different from one another? If so which one(s)? Interpret the result for the one(s) that is significant
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