Question

Respond to the following in a minimum of 175 words: The most frequently used measures of central tendency for quantitative data are the mean and the median. The following table shows civil service examination scores from 24 applicants to law enforcement jobs: 83 74 85 79 82 67 78 70 18 93 64 27 93 98 82 78 68 82 83 99 96 62 93 58 Using Excel, find the mean, standard deviation, and 5-number summary of this sample. Construct and paste a box plot depicting the 5-number summary. Does the dataset have outliers? If so, which one(s)? Would you prefer to use the mean or the medianas this dataset’s measure of central tendency? Why?

Answer #1

Sample mean using excel function AVERAGE(), x̅ = 75.5

Sample standard deviation using excel function STDEV.S, s = 19.9913

5 point summary:

Minimum = 18

First quartile, Q1 = 0.25(n+1)th value = 6.25th value of sorted data = 67.25

Median = 0.5(n+1)th value = 12.5th value of sorted data = 80.5

Third quartile, Q3 = 0.75(n+1)th value = 18.75th value of sorted data = 91

Maximum = 99

Yes, the data set have outliers.

Outliers: 18, 27

We would prefer median for this data set.as if is not affected by the presences of outliers.

Respond to the following in a minimum of 175 words:
The most frequently used measures of central tendency for
quantitative data are the mean and the median. The following table
shows civil service examination scores from 24 applicants to law
enforcement jobs:
83 74 85 79
82 67 78 70
18 93 64 27
93 98 82 78
68 82 83 99
96 62 93 58
Using Excel, find the mean, standard deviation, and 5-number
summary of this sample.
Construct and paste a box plot depicting the 5-number
summary.
Does the dataset have outliers? If so, which one(s)?...

This dataset contains consumer responses indicating the number
of times they had to send their product for repair and their
satisfaction with the repair process. Create a graph which can be
used to visually demonstrate the relationship between the two
columns of data. Ensure that the chart is professional with
appropriate titles, axis labels, etc. Note any observations you see
in your visualization (type these as sentences directly into an
Excel cell(s)).
Sample
Satisfaction Rating
Repair Requests
1
63%
13...

1. The following resting data were collected from three
different sports teams (hockey, rugby and football). Ignoring the
sport played, run a Kolmogorov–Smirnov test on the age variable.
What is the correct expression for the result?
ID
Sport
Age (y)
Body mass (kg)
Stature (m)
Resting heart rate (bpm)
Resting systolic blood pressure (mmHg)
Resting diastolic blood pressure (mmHg)
Resting mean arterial pressure (mmHg)
1
Hockey
18
79
1.83
65
121
79
93
2
Hockey
20
79.9
1.78
50
127...

The data are not actual data, but are modeled after data
collected by Trautwein and Ammerman (2013) for a study on the
effects of cochlear implants (CI) on the language, speech, and
perception skills of 32 deaf children: 16 subjects with at least
one cochlear implant (CI) and 16 subjects (with hearing loss)
without an implant. (CI subjects were implanted at 13 or 14 months
of age. So, no subjects had CIs at the time of the first data
collection.)...

16. The following resting data were collected from three
different sports teams (hockey, rugby and football). Ignoring the
sport played, run a Kolmogorov–Smirnov test on the age variable.
What is the correct expression for the result?
ID
Sport
Age (y)
Body mass (kg)
Stature (m)
Resting heart rate (bpm)
Resting systolic blood pressure (mmHg)
Resting diastolic blood pressure (mmHg)
Resting mean arterial pressure (mmHg)
1
Hockey
18
79
1.83
65
121
79
93
2
Hockey
20
79.9
1.78
50
127...

Employee
#
Perf. Rating
Cognitive Ability
Emotional
Intelligence
y-hat (to be
calculated)
1
1
56
3.5
2
2
66
3.1
3
3
59
2.9
4
3
67
2.3
5
4
67
3.1
6
4
68
2.6
7
4
69
3.5
8
4
70
3.5
9
4
73
3.2
10
4
77
1.8
11
4
72
3.4
12
4
75
3.5
13
4
76
3.8
14
4
58
2.7
15
5
65
2.8
16
4
67
3.2
17
5
67
3.5...

A physiological experiment was concluded to study the effect of
various factors on a pulse rate. The participants took their own
pulse. They then were asked to flip a coin. If their coin came up
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their own pulse again. The dataset pulse.txt, available from
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Pat.#
Before
After
1
195
125
To the left is 2 datasets measured for
a sample of 107 patients with the high cholesterol level before and
after taking medication. Obtain the following for both sets:
2
208
164
3
254
152
1- the mean, mode and median
4
226
144
5
290
212
2- the variance and standard
deviation
6
239
171
7
216
164
3- First, second and third
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8
286
200
9
243
190
10
217
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A loan made on March 14 is due September 13 of the following
year. Find the exact time for the loan in a non-leap year and a
leap year.
days.
The exact time in a non-leap year is ? days
The exact time in a leap year is ? days.
Data Table
Sequential Numbers for Dates of the Year
Day of Month
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sept.
Oct.
Nov.
Dec.
1
1
32
60
91
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1. A city official claims that the proportion of all commuters
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