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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 79.9 mmHg (millimeters of mercury) for a sample of size 1025 and a sample standard deviation 6.7 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 95% confidence. Preliminary: a. Is it safe to assume that n ≤ 5% of all patients with a systolic blood pressure? O Yes O No b. Is n > 30? No O Yes Confidence Interval: What is the 95% 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 79.9 mmHg (millimeters of mercury) for a sample of size 1025 and a sample standard deviation 6.7 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 95% confidence. Preliminary: a. Is it safe to assume that n ≤ 5% of all patients with a systolic blood pressure? O Yes O No b. Is n > 30? No O Yes Confidence Interval: What is the 95% confidence interval to estimate the population mean? Round your answer to one decimal place.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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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 79.9 mmHg (millimeters of mercury) for a sample of size 1025 and a sample standard deviation 6.7 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 95% confidence. Preliminary: a. Is it safe to assume that n ≤ 5% of all patients with a systolic blood pressure? Yes O No b. Is n > 30 ? No Yes Confidence Interval: What is the 95% confidence interval to estimate the population mean? Round your answer to one decimal place. <ft<
Transcribed Image Text:The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 79.9 mmHg (millimeters of mercury) for a sample of size 1025 and a sample standard deviation 6.7 mmHg. How much of mmHg will lower for a typical patient's systolic blood pressure after taking the drug? Estimate with a 95% confidence. Preliminary: a. Is it safe to assume that n ≤ 5% of all patients with a systolic blood pressure? Yes O No b. Is n > 30 ? No Yes Confidence Interval: What is the 95% confidence interval to estimate the population mean? Round your answer to one decimal place. <ft<
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