The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the...

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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 59.3 for a sample of size 25 and standard deviation 21.9. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 90% confidence level). Assume the data are from a normally distributed population. Round your answers to two decimal places. The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 59.3 for a sample of size 25 and standard deviation 21.9. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 90% confidence level). Assume the data are from a normally distributed population. Round your answers to two decimal places.