Question
In: Advanced Math
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 |
147 |
120 |
125 |
132 |
123 |
138 |
182 |
120 |
158 |
- Relying on this data find:
- the median
- the lower and upper quartiles
- the 90thpercentile
- the interquartile range
- the mean
- the standard deviation
- Discuss which approach (the mean and standard deviation or the median and interquartile range) better reflects the central tendency and variation for the given data.
Solutions
Colby Messinger answered 2 years agoRelated Solutions
A patient with a blood pressure of 180/120. is diagnosed with hypertension. The man weights 70kg....
A patient with a blood pressure of 180/120. is diagnosed with
hypertension. The man weights 70kg. Some test are performed and the
results are the following: What would be the proper course of
treatment or type of medication that should be used to treat this
patient?
Heart rate = 70 beats per
minute
End diastolic volume = 120
ml
End systolic volume = 60 ml
RBC’s = 5 million / mm3
WBC’s = 10,000 / mm3
Plasma volume = 3%...
Systolic blood pressure was measured on 30 female diabetics between the ages of 30 and 34...
Systolic blood pressure was measured on 30 female diabetics
between the ages of 30 and 34 from a particular ethnic group. Of
interest is whether blood pressure, on average, of women in this
population differs from the expected 131 mmHg. The data are
available in the file bp.csv.
bp.csv
124
128
150
132
133
152
137
116
123
126
146
135
136
132
124
152
137
107
139
125
118
128
119
122
123
111
141
133
117
146
a....
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...
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...
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?...
The systolic blood pressure of 16 students was measured before a test. The blood pressure from...
The systolic blood pressure of 16 students was measured before a
test. The blood pressure from this sample averaged 165, with a
standard deviation of 40.
a) Compute the approximate 95% confidence interval for mean
systolic blood pressure, and make a sketch illustrating these
confidence intervals
b) If a mean blood pressure above 130 is considered “stressed”,
what do your calculations show regarding the probability that the
observed mean is above the “stressed” level.
A patient visits her doctor with concerns about her blood pressure. If the systolic blood pressure...
A patient visits her doctor with concerns about her blood
pressure. If the systolic blood pressure exceeds 150, the patient
is considered to have high blood pressure and medication may be
prescribed. The problem is that there is a considerable variation
in a patient’s systolic blood pressure readings during a given
day.
A. If a patient’s systolic readings during a
given day have a normal distribution with a mean of 155 and a
standard deviation of 20, what is the...
Question: 9 hypertension patients in a clinic use an experimental drug for treatment. The systolic blood...
Question: 9 hypertension patients in a clinic use an
experimental drug for treatment. The systolic blood pressure
reading for these patients before and after using the drug are as
follows:
Assume that blood pressure has a standard deviation of 5 mmHg.
Do you think the drug works?
ID
BP BEFORE (mmHg)
BF AFTER (mmHg)
1
145
138
2
140
142
3
150
140
4
142
148
5
155
151
6
152
140
7
148
132
8
160
160
9
152...
Research Scenario Hypertension is defined as a systolic blood pressure (SBP) of 140 mmHg or more,...
Research Scenario
Hypertension is defined as a systolic blood pressure (SBP)
of 140 mmHg or more, or a diastolic blood pressure (DBP) of 90 mmHg
or more. Diastolic blood pressure (DBP) measurements from the
general population form a normal distribution with m = 82 mmHg and
s = 10 mmHg. Epidemiological studies have shown that obesity
increases the risk of hypertension (high DBP). Using data from a
cohort study, a researcher obtained a sample of n = 144 obese
persons...
4) Blood calcium levels are measured in mg/dL. In a group of patients over 30 you...
4) Blood calcium levels are measured in mg/dL. In a group of
patients over 30 you find the following: μ = 9.3 mg/dL, and σ =
2.35 mg/dL.
a) Give the blood calcium values for the middle 50% of
patients.
(Hint/comment: if you want the middle 50%, how many percent go
in each tail?)
b) Give the blood calcium values for the middle 70% of patients.
c) Give the 85th percentile.
d) Are you surprised by the answers to (b)...
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