Question: A major research study investigated how representative a treatment groups decrease in symptoms was when a certain drug was administered as compared with the response

A major research study investigated how representative a treatment group’s decrease in symptoms was when a certain drug was administered as compared with the response of the entire population. It turns out that the test of the research hypothesis resulted in a z score of 1.67. What conclusion might the researchers put forth? Hint: Notice that the Type I error rate or significance level is not stated (as perhaps it should be). What do you make of all this?

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