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New drug called curezall will be more effective

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Dr. Dave is interested in determining if a new drug called Curezall will be more effective in the treatment of depression than SSRI's. The population mean of depression patients being treated with SSRI's on the Beck Depression Inventory is 67.5. The Beck Depression Invenory scores of depressed patients who have been treated with Curezall are listed below. Determine if Dr. Dave's hypothesis is correct.

67, 75, 86, 72, 65, 87, 77, 69, 82, 90, 85, 69, 68

a. Compute the t obtained

b. With an a = .05, what is the tcrit?

c. Compute the confidence intervals for the u

Reference no: EM132155873

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