Question
In: Statistics and Probability
This problem is to be solved by hand. The weight and systolic blood pressure of 12...
This problem is to be solved by hand.
The weight and systolic blood pressure of 12 randomly selected males in the age group 25-30 are shown in the table below.
Subject 1 2 3 4 5 6 7 8 9 10 11 12
Weight (lbs), x 165 167 180 165 212 175 190 212 200 149 158 169
Systolic BP, y 130 133 150 128 151 146 150 140 148 125 133 135
(e) Test for significance of regression coefficient using the two-sided t-test and a = 0.05.
(f) Construct an analysis of variance table and use it to perform the hypothesis test of part (e). Restate the null and alternative hypotheses and interpret your results.
(g) Perform a residual analysis on the data.
(h) Summarize your analysis of parts (a)-(g) in paragraph form to determine the appropriateness of the model.
Solutions
orchestra answered 1 year agoRelated Solutions
Determine if there is a correlation between weight and systolic and diastolic pressure. Normal blood pressure...
Determine if there is a correlation between weight and systolic and
diastolic pressure.
Normal blood pressure 110/70 to 140/90
Girls
Weight and pressure
1. 117 (122/79)
2. 77 (110/70)
3. 115(121/80)
4. 147 (119/79)
5. 79 (109/70)
6. 117 (125/78)
7. 60 (112/71)
8. 130 (121/80)
9. 105 (122/80)
10. 94 (120/80)
Boys
Weight and pressure
1. 165 (126/78)
2. 147 (125/78)
3. 160 (120/74)
4. 168 (121/76)
5. 158 (125/80)
6. 187 (140/91)
7. 170 (131/82)
8. 145 (130/80)...
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...
Researchers want to examine whether or not weight can predict systolic blood pressure. They collect weight...
Researchers want to examine whether or not weight can predict
systolic blood pressure. They collect weight in pounds and blood
pressure measurements for 31 adult men. For your convenience, I
have prepared an Excel file with the data :
Weight
Systolic Blood Pressure
162
134
163
149
167
128
168
129
173
128
173
118
174
133
175
138
184
143
184
147
185
144
218
137
186
149
188
137
235
138
189
150
189
128
194
153
195...
The data show the systolic and diastolic blood pressure readings for 12 women.
The data show the systolic and diastolic blood pressure readings for 12 women.
X=Systolic 123 116 82 126 116 138 109 119 155 106 178 84
Y=Diastolic 66 71 62 84 70 91 67 66 80 70 89 72
a….What is the Y-INTERCEPT of the Least-Squares regression equation?
b…..Predict the diastolic reading for a woman whose systolic reading is 165.
c…..What percent of the variation in diastolic pressure is due to factors...
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...
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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