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Page 1 of 3
2022 May Semester (222)
MID-SEMESTER EXAM
DTSC13/71-302
STATISTICAL LEARING & REGRESSION MODELS
You must complete this assessment by yourself using only the
approved materials listed on the following page. Do not use any
additional materials or other aid. Do not discuss this assessment with
anyone during or after the assessment period. Violation of the
conditions of this assessment shall be deemed academic misconduct
and will be dealt with accordingly by the Bond Business School
Disciplinary Committee.
Upon submission of this assessment, you acknowledge and agree to the following:
• I declare that I am the person as indicated by the student identification number
associated with this assessment submission;
• I acknowledge and agree that I have read and understood the University’s
Academic Integrity Policy and Discipline Regulations, and that the submitted work
is my own and does not breach these regulations;
• I will not share this assessment or my answers at any time, even after the
conclusion of the assessment and
• I acknowledge that the assessor may:
o Communicate a copy of this assessment item to a plagiarism checking
service which may then retain a copy of the item on its database for the
purpose of future plagiarism checking; and
o Submit the assessment item to other forms of plagiarism checking.
Page 2 of 3
2022 May Semester (222)
MID-SEMESTER EXAM
DTSC13/71-302
STATISTICAL LEARING & REGRESSION MODELS
INSTRUCTIONS TO THE CANDIDATE:
The assessment is Open Book
MATERIALS ALLOWED
• No Restrictions
1. Answer ALL questions.
Date of Assessment: Thursday June 30, 2022
Start Time (if applicable): 10:00 am
Duration: 120 minutes
Lead Educator: Steven Stern
Lead Educator Contact Details: sstern@bond.edu.au
Submission Instructions: Through iLearn on-line portal
For examiners use only
2022 MAY SEMESTER (222) MID-SEMESTER EXAM DTSC13/71-302 STATISTICAL LEARING & REGRESSION MODELS
Page 3 of 3
Total Marks: 40
Question 1: (10 Total Marks)
Provide a short answer to each question:
a) REDACTED [3 marks]
b) REDACTED
[3 marks]
c) REDACTED
[4 marks]
Question 2: (15 Total Marks)
The file Cars22.csv contains data regarding 22 characteristics of 81 different makes of car:
▪ Type: “Compact”, “Small”, “Midsize”, “Large” or “Sporty”;
▪ MPG.city: Miles per gallon, city driving;
▪ MPG.high: Miles per gallon, highway driving;
▪ Airbags: “None”, “Driver only” or “Driver & Passenger”;
▪ DriveTrain: “rear wheel”, “front wheel” or “4WD”;
▪ Cylinders: Number of cylinders in the engine;
▪ EngineSize: Size of engine in litres;
▪ HorsePower: Maximum horsepower of engine;
▪ RPM: RPM at maximum horsepower;
▪ Rev.per.mile: Engine revolutions per mile in top gear
▪ Man.trans: Manual transmission availability;
▪ Fuel.tank: Fuel tank capacity (gallons);
The goal is to find the features most important in determining price. Also, a new European 4 passenger
sports car is to be marketed. It is rated at 18mpg(city), 25mpg(highway), has driver and passenger-side
airbags, front wheel drive, a 6-cylinder engine with 2.8-litre capacity, 178 horsepower with 5800rpm
at maximum horsepower and makes 2385 revolutions per mile in top gear. It has manual transmission
available, an 18.5-gallon fuel tank, a 97-inch wheelbase, a turning circle of 36 feet and is 159 inches
long and 66 inches wide. Its rear seat room is 26 inches, its luggage capacity is 15 cubic feet, it weighs
2810 pounds and has Type “A” coating. Estimate its price.
Question 3: (15 Total Marks)
The file nbn.csv contains data regarding National Broadband Network (NBN) installations:
Region Urbanisation Total.Assessed Not.Hi-Speed
New South Wales / ACT
(26.6%)
Metropolitan (56.9%) REDACTED REDACTED
Rural (32.2%) REDACTED REDACTED
Remote (10.9%) REDACTED REDACTED
Queensland / Northern Territory
(26.2%)
Metropolitan (55.9%) REDACTED REDACTED
Rural (23.2%) REDACTED REDACTED
Remote (20.9%) REDACTED REDACTED
South Australia / Western Australia
(25.4%)
Metropolitan (78.2%) REDACTED REDACTED
Rural (12.4%) REDACTED REDACTED
Remote (9.4%) REDACTED REDACTED
Victoria / Tasmania
(21.7%)
Metropolitan (59.5%) REDACTED REDACTED
Rural (31.9%) REDACTED REDACTED
Remote (8.5%) REDACTED REDACTED
The selling points for the NBN were fast, cheap and reliable internet. A nationwide sample of NBN
installations was taken to assess connection speeds. The data are grouped by region and urbanisation
level of installation location. The regions chosen reflect the fact each had a different installer, so one
goal is to assess any differences in installers’ ability to deliver hi-speed connections. Also, a national
estimate and 95% confidence interval for the percentage of hi-speed installations is required. Address
these questions. [NOTE: Installation proportions are given in brackets; e.g., the Queensland/Northern
Territory region comprises 26.2% of all installations, 55.9% of which were in Metropolitan areas.]
END OF PAPER
▪ CoatingMaterial: Type “A” or “B”;
▪ Passengers: Max passenger capacity
▪ Length: Vehicle length in inches;
▪ Wheelbase: Vehicle wheelbase in inches;
▪ Width: Vehicle width in inches;
▪ Turn.circle: U-turn space needed (feet);
▪ Rear.seat: Rear seat room in inches
▪ Luggage: Luggage capacity (cubic feet);
▪ Weight: Weight in pounds;
▪ Origin: “USA”, “Europe” or “Asia”; and,
▪ Price: Price in US dollars.
2022 May Semester (222)
MID-SEMESTER EXAM
DTSC13/71-302
STATISTICAL LEARING & REGRESSION MODELS
You must complete this assessment by yourself using only the
approved materials listed on the following page. Do not use any
additional materials or other aid. Do not discuss this assessment with
anyone during or after the assessment period. Violation of the
conditions of this assessment shall be deemed academic misconduct
and will be dealt with accordingly by the Bond Business School
Disciplinary Committee.
Upon submission of this assessment, you acknowledge and agree to the following:
• I declare that I am the person as indicated by the student identification number
associated with this assessment submission;
• I acknowledge and agree that I have read and understood the University’s
Academic Integrity Policy and Discipline Regulations, and that the submitted work
is my own and does not breach these regulations;
• I will not share this assessment or my answers at any time, even after the
conclusion of the assessment and
• I acknowledge that the assessor may:
o Communicate a copy of this assessment item to a plagiarism checking
service which may then retain a copy of the item on its database for the
purpose of future plagiarism checking; and
o Submit the assessment item to other forms of plagiarism checking.
Page 2 of 3
2022 May Semester (222)
MID-SEMESTER EXAM
DTSC13/71-302
STATISTICAL LEARING & REGRESSION MODELS
INSTRUCTIONS TO THE CANDIDATE:
The assessment is Open Book
MATERIALS ALLOWED
• No Restrictions
1. Answer ALL questions.
Date of Assessment: Thursday June 30, 2022
Start Time (if applicable): 10:00 am
Duration: 120 minutes
Lead Educator: Steven Stern
Lead Educator Contact Details: sstern@bond.edu.au
Submission Instructions: Through iLearn on-line portal
For examiners use only
2022 MAY SEMESTER (222) MID-SEMESTER EXAM DTSC13/71-302 STATISTICAL LEARING & REGRESSION MODELS
Page 3 of 3
Total Marks: 40
Question 1: (10 Total Marks)
Provide a short answer to each question:
a) REDACTED [3 marks]
b) REDACTED
[3 marks]
c) REDACTED
[4 marks]
Question 2: (15 Total Marks)
The file Cars22.csv contains data regarding 22 characteristics of 81 different makes of car:
▪ Type: “Compact”, “Small”, “Midsize”, “Large” or “Sporty”;
▪ MPG.city: Miles per gallon, city driving;
▪ MPG.high: Miles per gallon, highway driving;
▪ Airbags: “None”, “Driver only” or “Driver & Passenger”;
▪ DriveTrain: “rear wheel”, “front wheel” or “4WD”;
▪ Cylinders: Number of cylinders in the engine;
▪ EngineSize: Size of engine in litres;
▪ HorsePower: Maximum horsepower of engine;
▪ RPM: RPM at maximum horsepower;
▪ Rev.per.mile: Engine revolutions per mile in top gear
▪ Man.trans: Manual transmission availability;
▪ Fuel.tank: Fuel tank capacity (gallons);
The goal is to find the features most important in determining price. Also, a new European 4 passenger
sports car is to be marketed. It is rated at 18mpg(city), 25mpg(highway), has driver and passenger-side
airbags, front wheel drive, a 6-cylinder engine with 2.8-litre capacity, 178 horsepower with 5800rpm
at maximum horsepower and makes 2385 revolutions per mile in top gear. It has manual transmission
available, an 18.5-gallon fuel tank, a 97-inch wheelbase, a turning circle of 36 feet and is 159 inches
long and 66 inches wide. Its rear seat room is 26 inches, its luggage capacity is 15 cubic feet, it weighs
2810 pounds and has Type “A” coating. Estimate its price.
Question 3: (15 Total Marks)
The file nbn.csv contains data regarding National Broadband Network (NBN) installations:
Region Urbanisation Total.Assessed Not.Hi-Speed
New South Wales / ACT
(26.6%)
Metropolitan (56.9%) REDACTED REDACTED
Rural (32.2%) REDACTED REDACTED
Remote (10.9%) REDACTED REDACTED
Queensland / Northern Territory
(26.2%)
Metropolitan (55.9%) REDACTED REDACTED
Rural (23.2%) REDACTED REDACTED
Remote (20.9%) REDACTED REDACTED
South Australia / Western Australia
(25.4%)
Metropolitan (78.2%) REDACTED REDACTED
Rural (12.4%) REDACTED REDACTED
Remote (9.4%) REDACTED REDACTED
Victoria / Tasmania
(21.7%)
Metropolitan (59.5%) REDACTED REDACTED
Rural (31.9%) REDACTED REDACTED
Remote (8.5%) REDACTED REDACTED
The selling points for the NBN were fast, cheap and reliable internet. A nationwide sample of NBN
installations was taken to assess connection speeds. The data are grouped by region and urbanisation
level of installation location. The regions chosen reflect the fact each had a different installer, so one
goal is to assess any differences in installers’ ability to deliver hi-speed connections. Also, a national
estimate and 95% confidence interval for the percentage of hi-speed installations is required. Address
these questions. [NOTE: Installation proportions are given in brackets; e.g., the Queensland/Northern
Territory region comprises 26.2% of all installations, 55.9% of which were in Metropolitan areas.]
END OF PAPER
▪ CoatingMaterial: Type “A” or “B”;
▪ Passengers: Max passenger capacity
▪ Length: Vehicle length in inches;
▪ Wheelbase: Vehicle wheelbase in inches;
▪ Width: Vehicle width in inches;
▪ Turn.circle: U-turn space needed (feet);
▪ Rear.seat: Rear seat room in inches
▪ Luggage: Luggage capacity (cubic feet);
▪ Weight: Weight in pounds;
▪ Origin: “USA”, “Europe” or “Asia”; and,
▪ Price: Price in US dollars.
