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Answer.... The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 53.4 mmHg

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The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 53.4 mmHg (millimeters of mercury) for a sample of size 1096 and a sample standard deviation 6.5 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 90% confidence. Preliminary: a. Is it safe to assume that n 30 ? . Yes No Confidence Interval:What is the 90% confidence interval to estimate the population mean? Round your answer to one decimal place.

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