Question

10.
The blood pressure of 10 students are as follows:
100, 110, 120,
150, 190, 220, 130, 120, 110, 90

10a.What is the mean blood pressure?

10b.What would be the standard deviation of the above blood
pressures?

10c. How many data points you can find within 2 standard
deviations of the mean?

10d. What would be the first and the third quartiles for the
blood pressure data?

10e.Obtain the interquartile range.

10f. Based on your quartiles and interquartile range, how many
outliers does this data have?

Answer #1

10. (1 pt) The following 10 data values are systolic
blood pressure readings. Compute the mean, range, standard
deviation, Q1, Q3, IQR and variance for these data using
StatCrunch. Are there any outliers in this data set? Plot a boxplot
to prove your answer. Copy and Paste your work from StatCrunch into
your Word document submission.
130 125 160 120 170
120 130 130 140 90

The systolic blood pressure (given in millimeters) of males has
an approximately normal distribution with mean μ = 135 and standard
deviation σ = 12.
(a) Calculate the z-scores for the male systolic blood pressures
130 and 140 millimeters. (Round your answers to two decimal
places.)
130
mm
z
=
140
mm
z
=
(b) If a male friend of yours said he thought his systolic blood
pressure was 2.5 standard deviations below the mean, but that he
believed his...

Exhibit 4-9
Price of Good X
Quantity
Demanded
Quantity
Supplied
$10
220
110
11
200
150
12
180
180
13
150
210
14
120
240
15
80
290
Refer to Exhibit 4-9. Suppose that the government imposes a price
ceiling at a price of $11. How many fewer units would be exchanged
with the price ceiling than in a free market?

The systolic blood pressure is normally distributed with mean of
120 and standard deviation of 16. Find
What is the range for 68% of the population?
What percent of the students would have blood pressure in the
range of 88 and 152
What is the variance?

A question of medical interest is whether jogging leads to a
reduction in systolic blood pressure. To learn about this question,
eight nonjogging volunteers have agreed to begin a 1-month jogging
program. At the end of the month their blood pressures were
determined and compared with earlier values, with the following
data resulting:
1
2
3
4
5
6
7
8
Blood pressure before
134
122
118
130
144
125
127
133
Blood pressure after
130
120
123
127
138...

For women aged 18 to 24, systolic blood pressure (in mm Hg) is
normally distributed with a mean of 114.8 and a standard deviation
of 13.1 (based on data from the National Health Survey).
Hypertension is commonly defined as a systolic blood pressure above
140. Let X represent the systolic blood pressure of a randomly
selected woman between the ages of 18 and 24. a. Find the
probability the mean systolic blood pressure of four randomly
selected women would fall...

For the following data: (sorted)
3 4 5 8 8 10 12 12 20 22
a) Calculate
1) Average or average
6) The Range
2) The median
7) The Intercuartilico range
3) Fashion
8) Variance
4) The middle range
9) Standard deviation
5) The middle axis
10) the coefficient of variation
B. Prepare a Graphic Box Plot (Box and Wisker)
C. Determine border values or near atypical numbers
(outliers)
D) answer whether or not there are atypical numbers. What are...

Many Americans have high blood pressure which can lead to a
number of serious conditions including heart attack and stroke.
There are a number of drugs available to treat high blood pressure,
but researchers are always seeking new ones with fewer side
effects. In this experiment, researchers randomly selected 20 women
from a pool with high-normal blood pressure to high blood pressure
and measured their initial systolic blood pressure (in mm of Hg).
They treated the subjects with an experimental...

MTH 241 COMMON DATA ANALYSIS ASSIGNMENT
(Fall
2018)
Previous studies have shown that urban
bus drivers have an extremely stressful job, and a large proportion
of drivers retire prematurely with disabilities due to occupational
stress. These stresses come from a combination of physical and
social sources such as traffic congestion, incessant time pressure,
and unruly passengers. In the paper, “Hassles on the Job: A Study
of a Job Intervention with Urban Bus Drivers” (Journal
of Organizational Behavior, Vol. 20, pp....

1. James and George took a math exam. George’s percentile score
on the exam was 45; James’s percentile score was 90 on the same
test. We know that
a) James correctly answered twice as many questions than George. b)
They both scored better than 20 of their classmates. c) James
correctly answered more questions than George. d) George did not
pass the test.
2. Suppose you earned a raw score of 80 on a quiz. For which of the
following...

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