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

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

Data set 1: Blood Cholesterol (in mg/dL) Levels of 32
Participants at a Community Health Fair
180 185
200 198
211 203 199
195
210 190
210 200 180
197 188
198
187 240
189 168 185
220 188
200
188 259 195
221 200
196 194
196
For the previous data sets, do the following:
A. Create a frequency distribution. (1 point)...

Given a sample of 100 California University students were given
an IQ test and the mean was 125 and the standard deviation was 10
points, what California students would have a score: 1) Greater
than 135? 2) Less than 130? 3) Between the score of 120 and 140? 4)
Between 135 and 145? 5) What would be the IQ score for a California
student to be in the 98 the percentile?

Imagine you have collected data on 1500 english students
related to depression levels, on a 100-point scale. Your
distribution of data is normal, with a mean of 52, a standard
deviation of 7.
What score is at the 95th percentile?
how many students would have deviant depression levels (using
the 5% criterion)
You are teaching a large section of CHE 100, with 117 students.
Your class is part of a larger course enrollment totaling 3000
students. For the whole course...

1. "The mean of a sample of 10 scores is 100, and the standard
deviation is 5. For the following raw scores, compute the z
score:
101
112
97 .
For the following z scores, work backward to compute the
corresponding raw score:
0.5
1.1
2.12
2. "If a student receives a z score of 0, how well did that
student do in comparison with other students in the group?"
3. "You are in charge of a project that is...

1. (6 pts) The Graduate Record Examination
(GRE) is a test required for admission to many U.S. graduate
schools. Students' scores on the quantitative portion of the GRE
follow a normal distribution with mean 150 and standard deviation
8.8. In addition to other qualifications, a score of at least 160
is required for admission to a particular graduate school.
What proportion of combined scores can be expected to be over
160?
What proportion of combined GRE scores can be expected...

What are standard conditions of ΔH° for the data you will
use?
Temperature
0 K
100 K
273 K
298 K
Pressure
1.0 Pa
100 Pa
1.0 bar
100 bar
Concentration
1.0 g/L
1.0 mol/L
1.0 mg/L
mol/kg
Select the complete reactions (including phases) for the
reaction between solid NaOH and a solution of HCl.
2NaOH(s) + HCl(aq) → 2NaCl(aq) +
H2O(l)
NaOH(s) + HCl(aq) → NaCl(aq) +
H2O(l)
NaOH(s) + HCl(aq) → NaCl(s) +
H2O(l)
Calculate the theoretical ΔH°r...

You are asked to do a study of shelters for abused and battered
women to determine the
necessary capacity I your city to provide housing for most of
these women. After recording data
for a whole year, you find that the
mean number
of women in shelters each night is
250
, with a
standard deviation of 75
. Fortunately, the distribution of the number of women in the
shelters
each night is normal, so you can answer the following...

Data
For Tasks 1-8, consider the following data:
7.2, 1.2, 1.8, 2.8, 18, -1.9, -0.1, -1.5, 13.0, 3.2, -1.1,
7.0, 0.5, 3.9, 2.1, 4.1, 6.5
In Tasks 1-8 you are asked to conduct some computations
regarding this data. The computation should be carried out
manually. All the steps that go into the computation should be
presented and explained. (You may use R in order to verify your
computation, but not as a substitute for conducting the manual
computations.)
A Random...

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