辅导案例-CA3

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Diploma in Information Technology
Business Statistic with Python
Instruction for CA3 Individual Assignment
October 2020 Semester

Continual Assessment 3 Individual Assignment (40%)

Task:
The objective of this project is for students to apply statistical concepts on real-world
data and write a report on their observation. Students must ensure that their
observation is supported by valid sources.

This assignment will make use of what you have learnt in:
• Defining and Collecting Data
• Numerical Descriptive Measures
• Organising and Visualising Variables
• Use of Statistical Software for Data Analysis (Microsoft Excel)
• Probability Distributions
• Simple Linear Regression and Correlation Coefficient

Read the following article on the 5G Network in Singapore:
Article (1): https://www.businesstimes.com.sg/technology/imda-m1-mpa-to-conduct-
coastal-5g-network-trials-with-airbus

Cinquieme Generation Technology is the leading providers of Information and
Communication Technology (ICT) to service providers, businesses and commercial
users. Cinquieme Generation Technology enable the full value of connectivity by
creating game-changing technology and services that are easy to use, adopt, and
scale, making their customers successful in a fully connected world.

Cinquieme Generation Technology develops, delivers and manages
telecommunication networks by providing hardware, software, and services to
enable the full value of connectivity. From 5G to IoT to virtualisation, Cinquieme
Generation Technology are supporting digital transformation for the next generation
of mobile services.

With managed services, Cinquieme Generation Technology creates real value and
business differentiation by taking an integrated approach covering all aspects of their
customers’ businesses. By managing and optimising telecom networks and IT
operations with highly industrialised processes and a truly global delivery model,
Cinquieme Generation Technology enhances operators’ ability to meet and exceed
customer expectations.

You are a consultant to Cinquieme Generation Technology’s consumers division.
Your task is to understand the general trend of mobile data usage in Singapore for
the last few years. You are to write a report on the current trend of mobile data
usage. To ensure reproducibility, you should ensure that you include, in your report,
any formula that you have used.

For the following questions, download the following data sets hosted on data.gov.sg:
(1) Usage of Mobile Devices for Media Activities
[https://data.gov.sg/dataset/usage-of-mobile-devices-for-media-activities]
(2) Total Mobile Phone Subscriptions
[https://data.gov.sg/dataset/total-mobile-phone-subscriptions]
(3) Mobile Data Usage
[https://data.gov.sg/dataset/mobile-data-usage]



Question 1
Write a report, in 750 to 1000 words, and create a spreadsheet using Microsoft
Excel for the following cases.

In your report, for each part of the questions, you need to describe your
understandings, explain your calculations, and summarise your results.
Show all your calculations in the spreadsheet, and you need to cite references to the
respective worksheets in your report.

Cinquieme Generation Technology has a total of 64 unmanned aircraft systems
(UAS) for rent to vessels at the Singapore maritime drone estate. The booking fees
for the use of UAS at the sea is $300 per day. All fees are 100% refundable if the
user does not show up to claim the usage. The fixed cost (the cost that does not
change with the number of UAS in used, such as radio system operating costs, etc)
per day is $1000. The variable cost (the additional cost for UAS in used) per day is
$150 per UAS.

(i) Create a spreadsheet that calculates the total profit based on the number of
rentals. What is the total profit if Cinquieme Generation Technology rented out
56 UAS?

Write your answer in the report, and explain the calculation steps and
formulas used, in at least 150 words.

(HINT:
- Create a column for total number of UAS rentals
- The next column would be variable cost
- The third column would be total cost
- The fourth column would be revenue
- The fifth column would be profit)

(ii) Because of the full refund policy, it is common for user not to show up to claim
the usage. Cinquieme Generation Technology is wondering if it would make
financial sense to overbook and risk having not enough UAS for all users that
show up to claim the usage. In that case, Cinquieme Generation Technology
would find volunteers to give up their UAS in exchange for a free booking on a
future date. This would cost $100 for each overbooked user.

Update your spreadsheet to account for overbooked users. What is the total
profit if Cinquieme Generation Technology is operating with 64 UAS after
having 72 bookings for a day, assuming all 72 users show up to claim the
usage?

Write your answer in the report, and explain the calculation steps and
formulas used, in at least 150 words.

(iii) If 80 bookings are accepted, the number of users expected to show up to
claim usage can be approximated by a normal distribution with a mean of 68
and standard deviation of 5. Therefore, if Cinquieme Generation Technology
accepted 80 bookings for a day, what is the probability that the number of
users who show up to claim the usage will result in an overbooking?

Write your answer in the report, and explain the calculation steps and
formulas used, in at least 150 words.

(iv) Continuing with the same distribution, what is the probability that less than or
equal to 60 users show up to claim the usage?

Write your answer in the report, and explain the calculation steps and
formulas used, in at least 150 words.

(v) Comment and explain, in at least 100 words, whether Cinquieme Generation
Technology should continue with their operations with full refund and
overbooking strategy?



Question 2
Use dataset (1), (2) and (3) to answer this question.

Write a report, in 750 to 1000 words, for the following cases. In your report, describe
the detailed steps on how you perform the statistical calculation. Summarise your
report with your analysis findings.

(i) Describe, in at least 100 words, the background of the respondents and what
does each column means in the data.

(ii) Describe, in at least 100 words, the types of sampling methods used, and
comment on the suitability and accuracy of the sampling methods used.

(iii) Describe TWO (2) survey errors that can occur in the data. Comment, in at
least 100 words, on which is more significant in the data.

(iv) Using appropriate measure, calculate any correlation between the media
activities or age groups. Comment, in at least 100 words, on the result.

(v) Create appropriate charts, and summarise the data in at least 100 words.

(vi) Develop a linear regression model that can predict the usage of various media
for each age group for the year 2021. Describe and comment, in at least 200
words, on the accuracy of your model.


Report format
1. The report should have a cover page, content page, introduction, write-up on the
task, conclusion, references and appendices

2. The cover page should include:
i. Institution name (and institution logo) of this programme
ii. Module name, semester and year
iii. Date of submission
iv. Student’s name and student ID numbers

3. Each question should be a separate section

4. The references should be presented in Harvard format and should have at least
THREE (3) references.

Report Word Limit
1500 to 2000 words

Report Font and Spacing
Font: Calibri, Black
Font size: 12 and 1 ½ or double spacing.

Penalty Marks for Late Submission
By one day: 20% to be deducted from total marks.
More than one day: submission will NOT be graded.

Plagiarism and Collusion
The submitted report must show evidence that this is students’ own work. No marks
will be awarded if there are no workings or reasonable explanations. Please be
reminded that plagiarism and collusion is a serious offence, and all cases will be
referred to the administration. Grades will be withheld if the submission is suspected
for plagiarism or collusion till investigations are completed.

Important Deadlines
CA3 Written Report Deadline: 16 November 2020, 11.59a.m. Submit the softcopy
of your report via D2L/eGlobal.

Marking Rubric
The marking rubric for the written report can be found in the appendix of this
assignment.

Lecturer Contact
You should contact your lecturer via your SIM email whenever you have any issue
about your project. You may send your email to: [email protected].
Appendix

S/N Criteria Excellent Very good Good Acceptable Weak
1 Understanding
of the
Assignment
(5%)
Student has interesting,
logical, reasonable and
non-obvious interpretation
of the assignment
Student has logical,
reasonable and non-
obvious interpretation of
the assignment
Student has logical
and reasonable
interpretation of the
assignment
Student has logical
interpretation of
the assignment
Student has weak
interpretation of
the assignment
2 Understanding
of course
concepts
(5%)
Student has
demonstrated high level
of understanding of the
course concepts that are
both covered in the
course syllabus and those
not in the scope of the
course syllabus
Student has
demonstrated an
understanding of the
course concepts that
are both covered in the
course syllabus and not
in the scope of the
course syllabus
Student has
demonstrated high
level of
understanding of the
course concepts that
are covered in the
course syllabus
Student has
demonstrated
basic
understanding of
the course
concepts that are
covered in the
course syllabus
Student has not
demonstrated
sufficient
understanding of
the course
concepts that are
covered in the
course syllabus
3 Question 1
(35%)
Student has a clear
understanding of the
question requirements
and is able to describe
these requirements
effectively and
appropriately
Student has a clear
understanding of the
question requirements
and is able to describe
these requirements
appropriately
Student has
sufficient
understanding of the
question
requirements and is
able to describe
these requirements
appropriately
Student has limited
understanding of
the question
requirements and
is able to describe
these requirements
to some extent
Student has limited
understanding of
the question
requirements but is
unable to describe
these requirements
4 Question 2
(50%)
Student has used
appropriate formula and
methods with detailed
explanation
Student has used
appropriate formula and
methods with detailed
explanation to some
extent
Student has used
appropriate formula
and methods with
sufficient explanation
Student has used
appropriate
methods
Student has used
inappropriate
methods
6
Referencing
(5%)
Student has used more
than sufficient referencing
and practiced appropriate
referencing and citations
style
Student has used
sufficient referencing
and practiced
appropriate referencing
and citations style
Student has used
some referencing
and practiced
citations style
Student has used
limited referencing
Student has used
less than
satisfactory
amount of
referencing


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