Question
In: Statistics and Probability
Researcher recorded the following data to study the effects of age (x) on systolic blood pressure...
Researcher recorded the following data to study the effects of age (x) on systolic blood pressure (y) in men over the age of 50. Using the data below, calculate the 95% prediction interval for the systolic blood pressure of a 60-year old man. Estimated regression line is Y = 84.250 + 0.991x.
| Age | 67 | 54 | 78 | 66 | 80 | 57 | 59 | 71 | 60 | 62 | 53 |
| Systolic BP (mmHg) | 135 | 145 | 167 | 129 | 163 | 146 | 152 | 168 | 142 | 151 | 129 |
Solutions
orchestra answered 2 years agoRelated Solutions
A researcher studied age and systolic blood pressure of 6 randomly selected subjects. The data are...
A researcher studied age and systolic blood pressure of 6
randomly selected subjects. The data are shown in the table.
Subject /Age /Pressure
A 43 120
B 48 128
C 56 135
D 61 141
E 67 143
F 70 152
Test the significance of the correlation between age and
systolic blood pressure. Use a significance level of 0.05.
Step1) Identify the null and alternative hypotheses
symbolically. H0: H1:
Step 2) Find the p – value and make the decision...
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 medical researcher is investigating the effect of drinking coffee on systolic blood pressure. The researcher...
A medical researcher is investigating the effect of drinking
coffee on systolic blood pressure. The researcher assumes the
average systolic blood pressure is 120 mmHg. For a random sample of
200 patients, the researcher takes two measurements of systolic
blood pressure. The first systolic blood pressure measurement is
taken during a week when the patients drink no coffee, and the
second systolic blood pressure measurement is taken during a week
when the patients drink at least two cups of coffee....
The systolic blood pressure of individuals is thought to be related to both age and weight....
The systolic blood pressure of individuals is thought to be
related to both age and weight. For a random sample of 11 men, the
following data were obtained. Systolic Blood pressue x1 Age (years)
x2 Weight (pounds) x3 132 52 173 143 59 184 153 67 194 162 73 211
154 64 196 168 74 220 137 54 188 149 61 188 159 65 207 128 46 167
166 72 217 (a) Generate summary statistics, including the mean and
standard...
The systolic blood pressure of individuals is thought to be related to both age and weight....
The systolic blood pressure of individuals is thought to be
related to both age and weight. For a random sample of 11 men, the
following data were obtained.
Systolic Blood
pressue
x1
Age (years)
x2
Weight
(pounds)
x3
132
52
173
143
59
184
153
67
194
162
73
211
154
64
196
168
74
220
137
54
188
149
61
188
159
65
207
128
46
167
166
72
217
(a) Generate summary statistics, including the mean and standard...
The systolic blood pressure of individuals is thought to be related to both age and weight....
The systolic blood pressure of individuals is thought to be
related to both age and weight. For a random sample of 11 men, the
following data were obtained.
Systolic Blood
pressue
x1
Age (years)
x2
Weight
(pounds)
x3
132
52
173
143
59
184
153
67
194
162
73
211
154
64
196
168
74
220
137
54
188
149
61
188
159
65
207
128
46
167
166
72
217
(a) Generate summary statistics, including the mean and standard...
We have age and systolic blood pressure (SBP) of 10 randomly chosen people. Using this data,...
We have age and systolic blood pressure (SBP) of 10 randomly
chosen people. Using this data, we would like to create a model to
predict systolic blood pressure from age.
Age
SBP
53
137
50
132
54
149
48
132
43
120
43
126
63
161
63
170
62
152
65
164
Write out the model with the beta coefficients.
(6pts) Put this data into SPSS, and find the parameter
estimates. Write out the prediction equation. Interpret the
prediction equation....
We have age and systolic blood pressure (SBP) of 10 randomly chosen people. Using this data,...
We have age and systolic blood pressure (SBP) of 10 randomly
chosen people. Using this data, we would like to create a model to
predict systolic blood pressure from age.
Age
SBP
53
137
50
132
54
149
48
132
43
120
43
126
63
161
63
170
62
152
65
164
Give a 95% CI around the predicted slope coefficient and
interpret.
Using the prediction equation, what is the predicted systolic
blood pressure for a
44 year old?
61...
A researcher conducted a study to whether age, gender, obesity, high blood pressure and regular physical...
A researcher conducted a study to whether age, gender, obesity,
high blood pressure and regular physical activity is associated
with the risk of recurrent MI (measured as serum cholesterol level)
in post MI patients. A sample of 60 people was obtained from the
community. All subjects had their serum cholesterol level
drawn.
Research question: Do age, gender, obesity, high blood pressure and
regular physical activity predict the serum cholesterol level?
Please indicate which statistical test should be
used.
a. Independent...
A medical researcher is studying the effects of a drug on blood pressure. Subjects in the...
A medical researcher is studying the effects of a drug on blood
pressure. Subjects in the study have their blood pressure taken at
the beginning of the study. After being on the medication for 4
weeks, their blood pressure is taken again. The change in blood
pressure is recorded and used in doing the hypothesis test. Change:
Final Blood Pressure - Initial Blood Pressure The researcher wants
to know if there is evidence that the drug reduces blood pressure.
At...
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