The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 41.9 for a sample of size 304 and standard deviation 16.7. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 99% confidence level). Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).  < μμ <

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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 41.9 for a sample of size 304 and standard deviation 16.7.

Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 99% confidence level).

Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

 < μμ < 

Expert Solution
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GivenMean(x)=41.9standard deviation(s)=16.7sample size(n)=304α=1-0.99=0.01α2=0.005Degrees of freedom(df)=n-1=304-1=303tc=t0.005,303=2.5922  (from t table)

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