Question
In: Statistics and Probability
A special diet is intended to reduce systolic blood pressure among patients diagnosed with stage 2...
A special diet is intended to reduce systolic blood pressure among patients diagnosed with stage 2 hypertension. If the diet is effective, the target is to have the average systolic blood pressure of this group be below 150. After six months on the diet, an SRS of 28 patients had an average systolic blood pressure of ?¯=143 with standard deviation ?=21 . Is this sufficient evidence that the diet is effective in meeting the target? Assume the distribution of the systolic blood pressure for patients in this group is approximately Normal with mean ? .
The ?‑value for the one‑sample ? test is:
below 0.01.
larger than 0.1.
between 0.1 and 0.05.
between 0.01 and 0.05.
Solutions
orchestra answered 2 years agoRelated Solutions
A special diet is intended to reduce systolic blood pressure among patients diagnosed with stage 2...
A special diet is intended to reduce systolic blood pressure
among patients diagnosed with stage 2 hypertension. If the diet is
effective, the target is to have the average systolic blood
pressure of this group be below 150. After six months on the diet,
an SRS of 28 patients had an average systolic blood pressure of ¯ x
= 143 with standard deviation s = 21 . Is this sufficient evidence
that the diet is effective in meeting the target?...
Systolic blood pressure was measured in a group of 30 patients diagnosed with hypertension: Patient No....
Systolic blood pressure was measured
in a group of 30 patients diagnosed with hypertension:
Patient No.
1
2
3
4
5
6
7
8
9
10
Blood pressure, mmHg
155
138
126
152
164
142
128
132
170
145
Patient No.
11
12
13
14
15
16
17
18
19
20
Blood pressure, mmHg
129
122
128
127
141
132
127
145
138
138
Patient No.
21
22
23
24
25
26
27
28
29
30
Blood pressure, mmHg
127...
1. The following table gives the systolic blood pressure and age of patients. Systolic Blood Pressure...
1. The following table gives the systolic blood pressure and age
of patients.
Systolic Blood Pressure
Age
131
34
132
36
122
30
119
32
123
26
115
23
137
37
a) Determine an r value for this data and classify the value as
weak, moderate, or strong.
b) Based on your calculated r value, what can you say about the
slope of the regression line?
c) Determine the model equation. This is also called the
regression line or the...
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observational studies do not establish causation. Researchers
therefore designed a randomized comparative experiment. The
subjects were 12 healthy black men who volunteered to take part in
the experiment. They were randomly assigned to two groups: 10 of
the men received...
Calcium and Blood Pressure Does increasing the amount of calcium in our diet reduce blood pressure?...
Calcium and Blood Pressure Does increasing the amount of calcium
in our diet reduce blood pressure? Examination of a large sample of
people revealed a relationship between calcium intake and blood
pressure. The relationship was strongest for black men. Such
observational studies do not establish causation. Researchers
therefore designed a randomized comparative experiment. The
subjects were 12 healthy black men who volunteered to take part in
the experiment. They were randomly assigned to two groups: 10 of
the men received...
1. Blood Pressures. Among human females, systolic blood pressure (measured in mmHg) is normally distributed, with...
1. Blood Pressures. Among human females,
systolic blood pressure (measured in mmHg) is normally distributed,
with a mean of and a standard deviation of 06.3, μ = 1 .9. σ = 8 a.
Connie’s blood pressure is 117.4 mmHg. Calculate the z-score for
her blood pressure.
b. Mark Connie’s x-value and z-score (as well
as the mean) in the correct locations on the graph. c. Interpret
the meaning of Connie’s z-score value. 2. Finding raw values from
z-scores. California condors...
The table gives systolic blood pressure readings for Intensive Care Unit patients in their teens and...
The table gives systolic blood pressure readings for Intensive
Care Unit patients in their teens and those in their eighties.
Teen
100
100
104
104
112
130
130
136
140
140
142
146
156
Eighties
80
100
100
110
110
122
130
135
136
138
140
141
162
190
190
A) Plot systolic blood pressure side-by-side boxplot for teen
and eighties, compare the spread of systolic blood pressure for
each group.
Q1
Q3
Teen
104
140
Eighties
110
140.5
B)...
Systolic blood pressure is the amount of pressure that blood exerts on blood vessels while the...
Systolic blood pressure is the amount of pressure that blood
exerts on blood vessels while the heart is beating. The mean
systolic blood pressure for people in the United States is reported
to be 122 millimeters of mercury (mmHg) with a standard deviation
of 15 mmHg.
The wellness department of a large corporation is investigating
whether the mean systolic blood pressure of its employees is
greater than the reported national mean. A random sample of 50
employees will be selected,...
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...
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. Using this data, find the 99% 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...
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