Question
In: Statistics and Probability
You have measured the systolic blood pressure of a random sample of 25 students at KU....
- You have measured the systolic blood pressure of a random sample of 25 students at KU. A 95% confidence interval for the mean systolic pressure for the students is computed to be (122, 138). Which of the followings statements gives a valid interpretation of the interval?
- About 95% of the sample of students have systolic blood pressure between 122 and 138
- About 95% of the students have a systolic blood pressure between 122 and 138
- If the sampling procedure were repeated many times, then approximately 95% of the sample means would be between 122 and 138
- The probability that the sample mean falls between 122 and 138 is 0.95
Solutions
orchestra answered 1 year agoRelated Solutions
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.
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...
Listed below is a simple random sample of systolic blood pressure measurements (mm Hg) taken from...
Listed below is a simple random sample of systolic blood
pressure measurements (mm Hg) taken from the right and left arms of
seven people
Right arm 138 128 154 144 137 157 126
Left arm 179 173 167 125 173 146 158
Use a 0.04 significance level to test the claim that the blood
pressure in the right arm is less than the blood pressure in the
left arm. p-value?
Listed below is a simple random sample of systolic blood pressure measurements (mm Hg) taken from...
Listed below is a simple random sample of systolic blood
pressure measurements (mm Hg) taken from the right and left arms of
seven people
Right arm 138 128 154 144 137 157 126
Left arm 179 173 167 125 173 146 158
Write the hypotheses for the claim that the blood pressure in
the right arm is less than the blood pressure in the left arm.
Listed below is a simple random sample of systolic blood pressure measurements (mm Hg) taken from...
Listed below is a simple random sample of systolic blood
pressure measurements (mm Hg) taken from the right and left arms of
seven people
Right arm 138 128 154 144 137 157 126
Left arm 179 173 167 125 173 146 158
Use a 0.04 significance level to test the claim that the blood
pressure in the right arm is less than the blood pressure in the
left arm. Test statistic?
Listed below is a simple random sample of systolic blood pressure measurements (mm Hg) taken from...
Listed below is a simple random sample of systolic blood
pressure measurements (mm Hg) taken from the right and left arms of
seven people
Right arm 138 128 154 144 137 157 126
Left arm 179 173 167 125 173 146 158
Use a 0.04 significance level to test the claim that the blood
pressure in the right arm is less than the blood pressure in the
left arm.
Is there sufficient evidence to support the claim that the blood...
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...
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...
One with a systolic blood pressure greater than 129 is considered to have high blood pressure....
One with a systolic blood pressure greater than 129 is
considered to have high blood pressure. A study recorded
the systolic blood pressures of 14 randomly selected Americans,
which yielded a mean of 131.57 with standard deviation 15.88.
Conduct a hypothesis test to see if you can say
that Americans, on average, have high blood pressure.
1.Write the hypotheses for this test.
2.What is the test statistic?
3.What is the p-value?
4.Using α = 0.05, decide whether or not to...
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....
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