3. Dentists make many people nervous. To assess any effect of such nervousness on blood pressure, the systolic blood pressure of 60 subjects was measured both in a dental setting and in a medical setting (The Effect of the Dental Setting on Blood Pressure Measurement," Amer. J. of Public Health, 1983:1210- 1214). For each subject, the difference between dental setting pressure and medical setting pressure was computed; the resulting sample mean difference and sample standard deviation of the differences were 4.47 and 8.77 mmHg, respectively. o (a) Estimate the true mean difference between blood pressures for these two settings using a 99% confidence level. o (b) Does it appear that the true mean pressure is different in a dental setting than in a medical setting? Explain your reasoning.
3. Dentists make many people nervous. To assess any effect of such nervousness on blood pressure, the systolic blood pressure of 60 subjects was measured both in a dental setting and in a medical setting (The Effect of the Dental Setting on Blood Pressure Measurement," Amer. J. of Public Health, 1983:1210- 1214). For each subject, the difference between dental setting pressure and medical setting pressure was computed; the resulting sample mean difference and sample standard deviation of the differences were 4.47 and 8.77 mmHg, respectively. o (a) Estimate the true mean difference between blood pressures for these two settings using a 99% confidence level. o (b) Does it appear that the true mean pressure is different in a dental setting than in a medical setting? Explain your reasoning.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:3. Dentists make many people nervous. To assess any
effect of such nervousness on blood pressure, the
systolic blood pressure of 60 subjects was measured
both in a dental setting and in a medical setting (The
Effect of the Dental Setting on Blood Pressure
Measurement," Amer. J. of Public Health, 1983:1210-
1214). For each subject, the difference between dental
setting pressure and medical setting pressure was
computed; the resulting sample mean difference and
sample standard deviation of the differences were 4.47
and 8.77 mmHg, respectively.
o (a) Estimate the true mean difference
between blood pressures for these two
settings using a 99% confidence level.
o (b) Does it appear that the true mean
pressure is different in a dental setting than
in a medical setting? Explain your reasoning.
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