Question

Six different second-year medical students at Bellevue Hospital
measured the blood pressure of the same person. The systolic
readings (in mmHg) are listed below. Find the range, variance,
and standard deviation for the given sample data. If the subject's
blood pressure remains constant and the medical students correctly
apply the same measurement technique, what should be the value of
the standard deviation?

146 137 120 138 138 137

Answer #1

Six different second-year medical students at Bellevue Hospital
measured the blood pressure of the same person. The systolic
readings (in mmHg) are listed below. Find the range, variance,
and standard deviation for the given sample data. If the subject's
blood pressure remains constant and the medical students correctly
apply the same measurement technique, what should be the value of
the standard deviation?
146 137 120 138 138
137146 137 120 138 138 137

Fourteen different second-year medical students at a hospital
measured the blood pressure of the same person. The systolic
readings (mm Hg) are listed below. Use the given data to construct
a boxplot and identify the 5-number summary. 148 145 135 138 120
125 133 130 125 149 120 140 147 150

The following sample data were obtained from different
second-year medical students who took blood pressure measurements
of the same person. Conduct a formal hypothesis test to test for a
linear correlation between the systolic and diastolic readings. Use
a 0.05 significance level.
Systolic
138
130
135
140
120
Diastolic
82
91
100
100
80
What is the value of r? Round to 3 decimal places.

Find the (a) mean, (b) median, (c) mode, and (d) midrange
for the given sample data. Fourteen different second-year medical
students measured the blood pressure of the same person. The
systolic readings (in mmHg) are listed below.
131 140 145 143 131 136 131 147 120 140 120 131 137 124

Systolic Blood Pressure (BP) was measured in a group of 100
people taking medicine to reduce their BP. The average BP was 115
mmHg with a standard deviation of 20 mmHg. Hypothesis testing was
used to see if the sample was lower than the recommended blood
pressure of 120 mmHg. What is the conclusion of the test and the
associated p-value?
A. BP in the medicated group was statistically higher than the
recommended value of 120 mmHg (p-value = 0.012)...

The blood pressure of a person changes throughout the day.
Suppose the systolic blood pressure of a person is measured 32
times over several days and the standard deviation of these
measurements for the person is known to be ?=9.3 mmHg. Let ? be the
true average blood pressure for that person and let x¯=137 be the
average of the 32 measurements. (a) Find a two-sided 98% confidence
interval for ?. One can be 98% confident that the true average...

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