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The following are the systolic blood pressures (mm Hg) of 12 patients undergoing drug therapy for...

The following are the systolic blood pressures (mm Hg) of 12 patients undergoing drug therapy for hypertension

183, 152, 178, 157, 194, 163, 144, 114, 178, 152, 118, 158

Can we conclude on the basis of these data that the population mean is less than 165? Let α =0.05.

1. Write the hypotheses, indicate the claim

2. Find the critical value t-value

3. Calculate the standardized t -value

4. What is the decision

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