Principles of Macroeconomics 2e
2nd Edition
ISBN: 9781947172388
Author: Steven A. Greenlaw; David Shapiro
Publisher: OpenStax
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Chapter 15, Problem 43P
If
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QUESTION 2
[20]
2.1 Body Mass Index (BMI) is a summary measure of relative health. It is calculated by dividing an
individual's weight (in kilograms) by the square of their height (in meters).
A small sample was drawn from the population of UWC students to determine the effect of exercise
on BMI score. Given the following table, find the constant and slope parameters of the sample
regression function of BMI = f(Weekly exercise hours). Interpret the two estimated parameter
values.
X (Weekly exercise hours) Y (Body-Mass index)
QUESTION 3
2
4
6
8
10
12
41
38
33
27
23
19
Derek investigates the relationship between the days (per year) absent from work (ABSENT) and the
number of years taken for the worker to be promoted (PROMOTION). He interviewed a sample of 22
employees in Cape Town to obtain information on ABSENT (X) and PROMOTION (Y), and derived
the following:
ΣΧ
ΣΥ
341
ΣΧΥ
176 ΣΧ
1187
1012
3.1 By using the OLS method, prove that the constant and slope parameters of the…
QUESTION 2
2.1
[30]
Mariana, a researcher at the World Health Organisation (WHO), collects information
on weekly study hours (HOURS) and blood pressure level when writing a test
(BLOOD) from a sample of university students across the country, before running the
regression BLOOD = f(STUDY). She collects data from 5 students as listed below:
X (STUDY)
2
Y (BLOOD)
4
6
8
10
141
138
133
127
123
2.1.1 By using the OLS method and the information above derive the values for parameters
B1 and B2.
2.1.2 Derive the RSS (sum of squares for the residuals).
2.1.3 Hence, calculate ô
2.2
2.3
(6)
(3)
Further, she replicates her study and collects data from 122 students from a rival
university. She derives the residuals followed by computing skewness (S) equals -1.25
and kurtosis (K) equals 8.25 for the rival university data. Conduct the Jacque-Bera test
of normality at a = 0.05.
(5)
Upon tasked with deriving estimates of ẞ1, B2, 82 and the standard errors (SE) of ẞ1
and B₂ for the replicated data.…
If you were put in charge of ensuring that the mining industry in canada becomes more sustainable over the course of the next decade (2025-2035), how would you approach this? Come up with (at least) one resolution for each of the 4 major types of conflict: social, environmental, economic, and political
Chapter 15 Solutions
Principles of Macroeconomics 2e
Ch. 15 - Why is it important for the members of the Board...Ch. 15 - Given the danger of bank runs, why do banks not...Ch. 15 - Bank runs are often described as self-fulfilling...Ch. 15 - If the central bank sells 500 in bonds to a bank...Ch. 15 - What would be the effect of increasing the banks...Ch. 15 - Why does contractionary monetary policy cause...Ch. 15 - Why does expansionary monetary policy causes...Ch. 15 - Why might banks want to hold excess reserves in...Ch. 15 - Why might the velocity of money change...Ch. 15 - How is a central bank different from a typical...
Ch. 15 - List the three traditional tools that a central...Ch. 15 - How is bank regulation linked to the conduct of...Ch. 15 - What is a bank run?Ch. 15 - In a program of deposit insurance as it is...Ch. 15 - In government programs of bank supervision, what...Ch. 15 - What is the lender of last resort?Ch. 15 - Name and briefly describe the responsibilities of...Ch. 15 - Explain how to use an open market operation to...Ch. 15 - Explain how to use the reserve requirement to...Ch. 15 - Explain how to use the discount rate to expand the...Ch. 15 - How do the expansionary and contractionary...Ch. 15 - How do tight and loose monetary policy affect...Ch. 15 - How do expansionary, tight, contractionary, and...Ch. 15 - Which kind of monetary policy would you expect in...Ch. 15 - Explain how to use quantitative easing to...Ch. 15 - Which kind of monetary policy would you expect in...Ch. 15 - How might each of the following factors complicate...Ch. 15 - Define the velocity of the moneyCh. 15 - What is the basic quantity equation of money?Ch. 15 - How does a monetary policy of inflation target...Ch. 15 - Why do presidents typically reappoint Chairs of...Ch. 15 - In what ways might monetary policy be superior to...Ch. 15 - The term moral hazard describes increases in risky...Ch. 15 - Explain what would happen if banks were notified...Ch. 15 - A well-known economic model called the Phillips...Ch. 15 - How does rule-based monetary policy differ from...Ch. 15 - Is it preferable for central banks to primarily...Ch. 15 - Suppose the Fed conducts an open market purchase...Ch. 15 - Suppose the Fed conducts an open market sale by...Ch. 15 - All other things being equal, by how much will...Ch. 15 - Suppose now that economists expect the velocity of...Ch. 15 - If GDP is 1,500 and the money supply is 400, what...Ch. 15 - If GDP now rises to 1,600, but the money supply...Ch. 15 - If GDP now falls back to 1,500 and the money...
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- How is the mining industry related to other Canadian labour industries? Choose one other industry, (I chose Forestry)and describe how it is related to the mining industry. How do the two industries work together? Do they ever conflict, or do they work well together?arrow_forwardWhat is the primary, secondary, tertiary, and quaternary levels of mining in Canada For each level, describe what types of careers are the most common, and describe what stage your industry’s main resource is in during that stagearrow_forwardHow does the mining industry in canada contribute to the Canadian economy? Describe why your industry is so important to the Canadian economy What would happen if your industry disappeared, or suffered significant layoffs?arrow_forward
- What is already being done to make mining in canada more sustainable? What efforts are being made in order to make mining more sustainable?arrow_forwardWhat are the environmental challenges the canadian mining industry face? Discuss current challenges that mining faces with regard to the environmentarrow_forwardWhat sustainability efforts have been put forth in the mining industry in canada Are your industry’s resources renewable or non-renewable? How do you know? Describe your industry’s reclamation processarrow_forward
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