Question
In: Statistics and Probability
6. It is thought that dietary supplementation with linoleic acid reduces blood pressure. To test this,...
6. It is thought that dietary supplementation with linoleic acid
reduces blood pressure. To test this, 15 adults consumed 23 g/day
of sa✏ower oil, high in linoleic acid, for 4 weeks. Systolic blood
pressure (SBP) measurements were taken at baseline (before
ingestion of oil) and 1 month later, with the mean values over
several readings at each visit given in the following table:
Subject baseline SBP 1-month SBP Baseline1-month
SBP
1 101.97 101.96 0.01
2 115.65 115.73 -0.08
3 106.66 106.17 0.49
4 119.65 118.66 0.99
5 113.21 111.84 1.37
6 121.75 123.35 -1.60
7 95.87 94.00 1.87
8 124.75 122.80 1.95
9 144.08 141.48 2.60
10 129.72 125.99 3.73
11 95.30 91.03 4.27
12 95.14 90.78 4.36
13 139.42 133.57 5.86
14 90.52 83.34 6.68
15 117.74 108.90 8.84
mean 114.10 111.34 2.76
Variance 271.9 284.2 8.14
(a) What parametric test could be used to test for any e↵ect of
linoleic acid on SBP? Justify.
(b) Perform the test in (a), report a p-value, and provide a
conclusion in the context of the problem.
Solutions
orchestra answered 1 year agoRelated Solutions
Need Chi-Square Test for Independence to determine if eating healthy and exercising reduces diastolic blood pressure....
Need Chi-Square Test for Independence to determine if eating
healthy and exercising reduces diastolic blood pressure.
Day
BP Diastolic
Ate Healthy and Exercised
1
85
N
2
109
N
3
96
N
4
92
N
5
99
N
6
98
N
7
102
Y
8
93
N
9
90
Y
10
84
N
11
90
N
12
86
N
13
81
N
14
77
Y
15
90
Y
16
86
Y
17
83
N
18
80
Y
19
78
N...
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after taking new drug). Use a significance level of α=0.01 for the
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A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces
systolic blood pressure. The systolic blood pressure (in
millimeters of mercury) for nine patients before taking the new
drug and 2 hours after taking the drug are shown in the table
below. Is there enough evidence to support the company's claim?
Let d=(blood pressure before taking new drug)−(blood pressure
after taking new drug). Use a significance level of α=0.01 for the
test. Assume that the systolic blood pressure levels are normally...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces
systolic blood pressure. The systolic blood pressure (in
millimeters of mercury) for nine patients before taking the new
drug and 2 hours after taking the drug shown in the table below.
Using this data, find the 95 % confidence interval for the true
difference in blood pressure for each patient after taking the new
drug. Assume that the blood pressures are normally distributed for
the population of patients both before and...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces
systolic blood pressure. The systolic blood pressure (in
millimeters of mercury) for nine patients before taking the new
drug and 2 hours after taking the drug are shown in the table
below. Is there enough evidence to support the company's claim? Let
d=(blood pressure before taking new drug)−(blood pressure after
taking new drug). Use a significance level of α=0.05 for the test.
Assume that the systolic blood pressure levels are normally...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
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systolic blood pressure. The systolic blood pressure (in
millimeters of mercury) for nine patients before taking the new
drug and 2 hours after taking the drug are shown in the table
below. Is there enough evidence to support the company's claim?
Let d=(blood pressure before taking new drug)−(blood pressure
after taking new drug)d=(blood pressure before taking new
drug)−(blood pressure after taking new drug). Use a significance
level of α=0.01 for the...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
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systolic blood pressure. The systolic blood pressure (in
millimeters of mercury) for nine patients before taking the new
drug and 2 hours after taking the drug are shown in the table
below. Is there enough evidence to support the company's claim? Let
d=(blood pressure before taking new drug)−(blood pressure after
taking new drug). Use a significance level of α=0.05 for the test.
Assume that the systolic blood pressure levels are normally...
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