Testing hypothesis that people in state are depressed

Reference no: EM1319451

Q1) Sociologist thinks that due to prolonged periods of rain and haze in State A people on average are more depressed than population of the rest of U.S. Our sociologist devises a scale which measures degree of depression and administers survey of 150 people in State A. He determines that the mean depression score of this sample is 150 with a standard deviation of 14. If national mean of depression based on scale of depression comparable to that of our sociologist is 145, test hypothesis that people in State A are more depressed than U.S. population. Illustrate all of your hypothesis steps. (Use alpha = .01.)

Reference no: EM1319451

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