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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 21.4 mmHg (millimeters of mercury) for a sample of size 334 and a sample standard deviation 11.7 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 98% confidence. Preliminary: Is it safe to assume that �≤5% of all patients with a systolic blood pressure? No Yes Is �≥30 ? No Yes   Confidence Interval:What is the 98% confidence interval to estimate the population mean? Round your answer to one decimal place.

The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 21.4 mmHg (millimeters of mercury) for a sample of size 334 and a sample standard deviation 11.7 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 98% confidence. Preliminary: Is it safe to assume that �≤5% of all patients with a systolic blood pressure? No Yes Is �≥30 ? No Yes   Confidence Interval:What is the 98% confidence interval to estimate the population mean? Round your answer to one decimal place.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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 21.4 mmHg (millimeters of mercury) for a sample of size 334 and a sample standard deviation 11.7 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 98% confidence.

Preliminary:

  1. Is it safe to assume that �≤5% of all patients with a systolic blood pressure?
    • No
    • Yes


  2. Is �≥30 ?
    • No
    • Yes
     

Confidence Interval:What is the 98% confidence interval to estimate the population mean? Round your answer to one decimal place.

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