Question
In: Statistics and Probability
A nutritionist wants to know if there is a difference in blood pressure if a person...
A nutritionist wants to know if there is a difference in blood pressure if a person follows a Mediterranean diet. The nutritionist obtains participants’ blood pressure before and after the diet program. What would be the most appropriate statistical test to determine whether there is a significant reduction in blood pressure?
Solutions
Expert Solution
Median test or sign test is appropriate for this situation.
For this problem assume X be the blood pressure before diet program and Y be the blood pressure after diet program.
orchestra answered 2 years agoRelated Solutions
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A nutritionist is interested in the effect of eating a
vegetarian diet on blood pressure. Specifically, she is interested
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omnivores were randomly selected from a normal population to
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each group were measured and the results are recorded in the
following table. use an alpha level of α = .05.
Systolic Blood...
The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of...
The blood pressure of a person changes throughout the day.
Suppose the systolic blood pressure of a person is measured 24
times over several days and the standard deviation of these
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be the true average blood pressure for that person and let x¯=96 x
¯ = 96 be the average of the 24 measurements. (a) Find a two-sided
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The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of...
The blood pressure of a person changes throughout the day.
Suppose the systolic blood pressure of a person is measured 16
times over several days and the standard deviation of these
measurements for the person is known to be σ=7.9 mmHg. Let μ be the
true average blood pressure for that person and let x¯=127 be the
average of the 16 measurements.
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94% confident that the true average...
The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of...
The blood pressure of a person changes throughout the day.
Suppose the systolic blood pressure of a person is measured 16
times over several days and the standard deviation of these
measurements for the person is known to be σ=7.9 mmHg. Let μ be the
true average blood pressure for that person and let x¯=127 be the
average of the 16 measurements.
(a) Find a two-sided 94% confidence interval for μ. One can be
94% confident that the true average...
Summarize how a blood pressure cuff allows a person to determine blood pressure.
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What is the difference between ADH and blood pressure?.
What is the difference between ADH and blood pressure?.
2. Blood pressure is independent of the blood group. We want to know, if the distributions...
2. Blood pressure is independent of the blood group. We want to
know, if the distributions attending to the blood group, in three
referred samples attending to the type of blood pressure, they are
distributed in the same way. To this end, a sample of 1500 subjects
was collected and their blood group was determined and blood
pressure was taken, classifying it as low, normal, and high.
Obtaining the following results:
Blood pressure
Blood Grpoup
A
B
AB
O
Total...
A researcher wants to know if the news station a person watches is a factor in...
A researcher wants to know if the news station a person watches
is a factor in the amount of time (in minutes) that they watch. The
table below shows data that was collected from a survey.
Local
FOX
CNN
56
50
64
20
43
67
25
30
23
61
62
24
53
51
63
43
16
38
35
61
42
23
Assume that all distributions are normal, the three population
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A consumer organization wants to know whether there is a
difference in the price of a particular toy at three different
store types. The price of the toy was checked in a sample of five
discount stores, five variety stores, and five department stores.
The sample results and the excel output are shown below:
Discount
Variety
Dept.
12
15
19
13
17
17
14
14
16
12
18
20
15
17
19
Anova: Single Factor
SUMMARY
Groups
Count
Sum
Average...
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