Question: 7.2.2 hello, 3.9 and 3.919 come out incorrect The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction

7.2.2 hello, 3.9 and 3.919 come out incorrect

The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 42 for a sample of size 24 and standard deviation 15. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 80% confidence level). Give your answers to one decimal place and provide the point estimate with its margin of error. 42

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