oretta, who turns 91 this year, has heard that the mean systolic blood pressure among the elderly is 120 millimeters of mercury ( mm Hg ), but she believes that the actual value is higher. She bases her belief on a recently reported study of 19 randomly selected, elderly adults. The sample mean systolic blood pressure of the adults in the study was 130 mm Hg , and the sample standard deviation was 20 mm Hg . Assume that the population of systolic blood pressures of elderly adults is normally distributed. Based on the study, at the 0.05 level of significance, can it be concluded that μ , the mean systolic blood pressure among elderly adults, is greater than 120 mm Hg ?
oretta, who turns 91 this year, has heard that the mean systolic blood pressure among the elderly is 120 millimeters of mercury ( mm Hg ), but she believes that the actual value is higher. She bases her belief on a recently reported study of 19 randomly selected, elderly adults. The sample mean systolic blood pressure of the adults in the study was 130 mm Hg , and the sample standard deviation was 20 mm Hg . Assume that the population of systolic blood pressures of elderly adults is normally distributed. Based on the study, at the 0.05 level of significance, can it be concluded that μ , the mean systolic blood pressure among elderly adults, is greater than 120 mm Hg ?
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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Question
Loretta, who turns
91
this year, has heard that the
120
millimeters of mercury (
mm Hg
), but she believes that the actual value is higher. She bases her belief on a recently reported study of
19
randomly selected, elderly adults. The sample mean systolic blood pressure of the adults in the study was
130
mm Hg
, and the sample standard deviation was
20
mm Hg
.
Assume that the population of systolic blood pressures of elderly adults is
0.05
level of significance, can it be concluded that
μ
, the mean systolic blood pressure among elderly adults, is greater than
120
mm Hg
?
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