Exam (elaborations)
ECS3706 ASSESSMENT 1 SEMESTER 2 2024 A+ (157508)
- Course
- Econometrics
- Institution
- University Of South Africa (Unisa)
For assistance contact
[Show more]
Content preview
ECS3706/ASSIGNMENT 1/2024Assignment 01 Semester 02
Econometrics
ECS3706
Semester 2
Department of Economics
This tutorial letter contains Assignment 1 Questions
Unique Number: 157508
BARCODE
, 1 Which of the following statements about the residual in the context of regression analysis
is/are correct?
a It is the slope of the regression equation
b It is the correlation coefficient
c It is the difference between the observed and predicted values of the dependent
variable
[1] a
[2] a and b
[3] a, b and c
[4] c
2 Which of the following indicates a good fit of the model in multiple regression analysis?
a A high standard error of the estimate
b A high R2 value
c A small sample size
[1] b
[2] a and b
[3] c
[4] a
Questions 3 - 10 require you to estimate regression function 1 using the Ordinary Least Squares
(OLS) method.
𝐺𝐷𝑃𝑡 = 𝛽0 + 𝛽1 𝐹𝐷𝐼𝑡 ………………………… (Equation 1)
Questions 11 – 13 require you to estimate the regression function 2.
𝐺𝐷𝑃𝑡 = 𝛽0 + 𝛽1 𝐹𝐷𝐼𝑡 + 𝛽2 𝐶𝑂2𝑡 …………….. (Equation 2).
Where: GDP: Gross Domestic Product (constant 2015 USD)
FDI: Foreign Direct Investment (net inflows % of GDP in billions of rand)
CO2: Carbon Dioxide Emissions (Kilo tons (Kt))
The data obtained from the World Bank Development Indicators (WDI) for the period 1990 -
2020 is provided in the Excel spreadsheet under the Additional Resources Folder on MyUnisa.
• Derive your answers from basic principles using MS Excel to compile a table similar to
Table 2.1: The calculation of estimated regression coefficients for the Weight/Height
example). See Studenmund, p58 in the seventh edition.
• Use a spreadsheet to perform the calculations. Please be completely accurate (no
rounding) in all calculations since rounding may significantly affect your results.
• Small letters refer to deviations from the means, as in 𝑥 = 𝑋 − 𝑋̅ and 𝑦 = 𝑌 − 𝑌̅.
2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller knowledgehut. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R50,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
69052 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 15 years now