Laughter is often called "the best medicine," since studies have shown that laughter can reduce muscle tension and increase oxygenation of the blood. To determine the physiological changes that accompany laughter, 25 subjects (18-34 years old) watched film clips designed to evoke laughter. During the laughíng period, the researchers measured the heart rate (beats per minute) of each subject and reported a sample mean of 73.5 and sample standard deviation of 6. It is wellI known that the mean resting heart rate of adults is 71 beats per minute, Conduct a test to determine if there is sufficient evidence to indicate that the true mean heart rate during laughter exceeds 71 beats per minute with a 0.05 level of significance. Set up the null and alternative hypotheses. O A. Ho: p=71; HA:p<71 O B. Ho: H=71; HA<71 OC. Ho: p=71; HA:p#71 O D. Ho: p=71; HA p>71 O E. Ho: H=71; HA>71 OF. Ho: H=71; HAH#71 Calculate the test stat. (Round your answer to 4 decimal places.) Test Stat =
Laughter is often called "the best medicine," since studies have shown that laughter can reduce muscle tension and increase oxygenation of the blood. To determine the physiological changes that accompany laughter, 25 subjects (18-34 years old) watched film clips designed to evoke laughter. During the laughíng period, the researchers measured the heart rate (beats per minute) of each subject and reported a sample mean of 73.5 and sample standard deviation of 6. It is wellI known that the mean resting heart rate of adults is 71 beats per minute, Conduct a test to determine if there is sufficient evidence to indicate that the true mean heart rate during laughter exceeds 71 beats per minute with a 0.05 level of significance. Set up the null and alternative hypotheses. O A. Ho: p=71; HA:p<71 O B. Ho: H=71; HA<71 OC. Ho: p=71; HA:p#71 O D. Ho: p=71; HA p>71 O E. Ho: H=71; HA>71 OF. Ho: H=71; HAH#71 Calculate the test stat. (Round your answer to 4 decimal places.) Test Stat =
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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Please answer both parts
Transcribed Image Text:Laughter is often called "the best medicine," since studies have shown that laughter can reduce muscle tension and increase oxygenation of the blood. To determine
the physiological changes that accompany laughter, 25 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 and reported a sample mean of 73.5 and sample standard deviation of 6. It is well known that
the mean resting heart rate of adults is 71 beats per minute.
Conduct a test to determine if there is sufficient evidence to indicate that the true mean heart rate during laughter exceeds 71 beats per minute with a 0.05 level of
significance.
Set up the null and alternative hypotheses.
A. Ho: p=71; HA: p<71
O B. Ho: H=71; HA:<71
OC. Ho: p=71; HA:p#71
D. Ho:p=71; HA: p>71
E. Ho: H=71; HA>71
O F. Ho: H=71; HAH#71
e
Calculate the test stat. (Round your answer to 4 decimal places.)
Test Stat
%3D
Transcribed Image Text:Calculate the test stat. (Round your answer to 4 decimal places.)
Test Stat =
Determine the conclustion for this test.
O A. Fail to Reject H; There is sufficient evidence to conclude H, with a level of significance.
O B. Fail to Reject Ho; There is insufficient evidence to conclude H, with a level of significance.
- O C. Reject Ho; There is insufficient evidence to conclude H, with a level of significance.
O D. Reject Ho; There is sufficient evidence to conclude H, with a level of significance.
A.
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