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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

Section10.3: Measures Of Spread

Problem 1GP

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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 20.7 for a sample of size 661 and standard deviation 7.4.
Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 98% 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).
<ft<
Answer should be obtained without any preliminary rounding.

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