a. Set up Ho and H₂ for testing whether the true mean heart rate during laughter exceeds 71 beats per minute. Choose the correct answer below. A. Ho: μ = 71 H₂:μ#71 C. Ho: μ = 71 H₂:μ>71 B. Ho: μ#71 H₂:μ=71 D. Ho: μ = 71 Ha: μ<71
a. Set up Ho and H₂ for testing whether the true mean heart rate during laughter exceeds 71 beats per minute. Choose the correct answer below. A. Ho: μ = 71 H₂:μ#71 C. Ho: μ = 71 H₂:μ>71 B. Ho: μ#71 H₂:μ=71 D. Ho: μ = 71 Ha: μ<71
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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Transcribed Image Text:Researchers investigated the physiological changes that accompany laughter. Ninety subjects (18-34 years old)
watched film clips designed to evoke laughter. During the laughing period, the researchers measured the heart
rate (beats per minute) of each subject, with the following summary results: x = 73.3, s = 8. It is well known that the
mean resting heart rate of adults is 71 beats per minute. Complete parts a through d below.
a. Set up Ho and H₂ for testing whether the true mean heart rate during laughter exceeds 71 beats per minute. Choose
the correct answer below.
O A. Ho: μ = 71
Ha: μ#71
O C. Ho: μ = 71
Ha:μ>71
O B. Ho: μ#71
H₂:μ=71
O D. Ho: μ = 71
Ha: μ<71
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