Suppose a statistician built a multiple regression model for predicting the total number of runs scored by a baseball team during a season. Using data for n=200 samples, the results below were obtained. Complete parts a through d.
|
Ind. Var. |
β estimate |
Standard Error |
Ind. Var.. |
β estimate |
Standard Error |
|
Intercept |
3.88 |
17.03 |
Doubles (X3) |
0.74 |
0.04 |
|
Walks (X1) |
0.37 |
0.05 |
Triples (X4) |
1.17 |
0.23 |
|
Singles (X2) |
0.51 |
0.05 |
Home Runs (X5) |
1.44 |
0.04 |
a. Write the least squares prediction equation for y= total number of runs scored by a team in a season.
y=(3.88)+(0.37)X1+(0.51)X2+(0.74) X3+(1.17).X4+(1.44) X5. CORRECT ANSWERS (Type integers or decimals.)
b. Interpret, practically, β0 and β1 in the model. Which statement below best interprets β0?
A. For a change of β0 in any variable, the runs scored increases by 1.
B. For a decrease of 1 in any variable, the runs scored changes by β0.
C. For an increase of 1 in any variable, the runs scored changes by β0.
D. For a change of β0 in any variable, the runs scored decreases by 1.
E. This parameter does not have a practical interpretation. Your answer is correct.
Which statement below best interprets β1?
A. For an increase of 1 in the number of walks, the runs scored changes by β1.
B. For a change of β1 in the number of walks, the runs scored increases by 1.
C. For a decrease of 1 in the number of walks, the runs scored changes by β1.
D. For a change of β1in the number of walks, the runs scored decreases by 1.
E. This parameter does not have a practical interpretation.
In: Math
In the AD-SRAS-LRAS model, what happens to the price level and the unemployment level in the short-run when there is an increase in consumption spending (C)?
Group of answer choices
a.Price level increases and unemployment level increases.
b.Price level decreases and unemployment level falls.
c.Price level increases and unemployment level falls.
d.Price level decreases and unemployment level increases.
Output gap is the difference between:
Group of answer choices
a.Nominal Output and Short-Run Output
b.Real GDP and Nominal GDP
c.Actual output and Potential Output
d.Final output and intermediate output
The unemployment level associated with the potential level of output is called the:
Group of answer choices
a.Seasonal Unemployment.
b.Structural Unemployment
c.Cyclical Unemployment
d.The Natural Level of Unemployment
The Sticky Price Theory states that:
Group of answer choices
a.SRAS is upward sloping because some firms are slow to respond to overall price level changes in the economy.
b.SRAS is downward sloping because some firms are slow to respond to overall price level changes in the economy.
c.LRAS is vertical because some firms are slow to respond to overall price level changes in the economy.
d.LRAS is downward sloping because some firms are slow to respond to overall price level changes in the economy.
The primary difference between Real and Nominal Wage is that:
Group of answer choices
a.Real Wage does not account for inflation, whereas Nominal Wage does.
b.Real Wage does not reflect the purchasing power, but Nominal wage does.
c.Real Wage is reported, while Nominal Wage is not.
d.Real wage accounts for inflation, whereas Nominal Wage does not.
In: Economics
1. Which Herfindahl–Hirschman index is MOST likely to indicate a perfectly competitive market?
Select one:
a. 100
b. 100,000
c. 1,800
d. 10,000
2. To calculate the Herfindahl–Hirschman index (HHI), one must _____ market share(s) of _____ in the industry.
Select one:
a. sum the squared; all of the firms
b. divide the; the largest firm by the sum of the four largest firms
c. sum the; all of the firms
d. sum the; the four largest firms
3. Table: Demand Schedule of Gadgets
| Price of Gadget |
Quantity of Gadgets Demanded |
|---|---|
| $10 | 0 |
| $9 | 100 |
| $8 | 200 |
| $7 | 300 |
| $6 | 400 |
| $5 | 500 |
| $4 | 600 |
| $3 | 700 |
| $2 | 800 |
| $1 | 900 |
| $0 | 1,000 |
Reference: Ref 14-1 Table: Demand Schedule of Gadgets
(Table: Demand Schedule of Gadgets) Use Table: Demand Schedule of Gadgets. The market for gadgets consists of two producers, Margaret and Ray. Each firm can produce gadgets with no marginal cost or fixed cost. Suppose that these two producers have formed a cartel, agreed to split production of output evenly, and are maximizing total industry profits. Total industry output would be _____ gadgets.
Select one:
a. 50
b. 500
c. 10
d. 5
4.
Collusive agreements are typically difficult for cartels to maintain because each firm can increase profits by:
Select one:
a. producing more than the quantity that maximizes joint profits.
b. advertising less than will maximize joint cartel profits.
c. charging more than the price that maximizes joint cartel profits.
d. producing less than the quantity that maximizes joint profits.
5.
Figure: Monopoly Profits in Duopoly![Figure 14-2, shown in monopoly profits in duopoly. On the Y-axis is price, marginal revenue, and marginal cost. On the x-axis is quantity per period. The y-axis starts at 0 and goes up to point P1, P2, P3, and P4. On the x-axis starts at 0 and goes out to q1, q2, q3, q4, and q5. We're lookinf at a marginal cost equals average total cost curve that goes at P1 on a horizontal line, we have D2, which starts at P4, and downward slopes out to Q5. We have D1, which equals MR2 starting at P4, and downward sloping to Q3. And then we have MR1, which starts at P4, and comes down right before Q2. Point F is where MR1 intersects MC equals ATC horizontal curve. Point g is where D1 intersects the MC horizontal curve, and point C is where D2 intersects the MC curve. Point F is found at P1 Q1, point G is found at P1 Q2 and point C is found at P1 Q4. There's also point E which is above the marginal cost. [BLANK_AUDIO] Horizontal curve. And it is found on D1 at a point of P2, Q1. There's also point B which is along the same horizontal plane as point E and is found at P2, Q2 along the D2 curve. And then, there's point A, which is the highest point along the Y axis, along D2 and that is found in intersection of P3 and Q1.](https://moodle.esc.edu/pluginfile.php/2535221/question/questiontext/615312/25/3052988/ppg__d6__brg00011f542c063c686__r2-1.png)
Reference: Ref 14-2 Figure: Monopoly Profits in Duopoly
(Figure: Monopoly Profits in Duopoly) Use Figure: Monopoly Profits in Duopoly. The efficient solution in the figure is found where price is _____ and quantity is _____.
Select one:
a. P1; Q4
b. P2; Q1
c. P2; Q2
d. P3; Q1
6.
An extreme case of oligopoly in which firms collude to raise joint profits is known as a:
Select one:
a. dominant producer.
b. duopoly.
c. price war.
d. cartel.
7.
In oligopoly, a firm must realize that:
Select one:
a. what it does has no effect on the other firms in the industry.
b. another major firm may dominate choices in the industry, and it will have to behave accordingly.
c. collusion was made legal in 2004.
d. its behavior will be ignored by other firms in the industry.
8.
In an oligopoly:
Select one:
a. there are many sellers.
b. firms recognize their interdependence.
c. there are no barriers to entry.
d. total surplus is maximized.
9.
Figure: Prisoners' Dilemma for Thelma and Louise
Reference: Ref 14-6 Figure: Prisoners' Dilemma for Thelma and Louise
(Figure: Prisoners' Dilemma for Thelma and Louise) Use Figure: Prisoners' Dilemma for Thelma and Louise. Thelma and Louise are arrested and jailed for murder. Given the payoff matrix in the figure, the Nash equilibrium behavior is for Thelma _____ and Louise _____.
Select one:
a. to confess; to confess
b. not to confess; not to confess
c. to confess; not to confess
d. not to confess; to confess
10.
As a New York business owner who does a lot of flying, you are keenly aware of even small changes in airfare from New York to Chicago. You have flown this route long enough to know that each airline is essentially a perfect substitute for the others. You notice that every time the largest airline changes the price, smaller airlines follow, but the smaller airlines are always priced slightly below the fare of the largest airline. This industry could BEST be described as one with:
Select one:
a. cartel behavior.
b. price leadership.
c. nonprice competition.
d. price wars.
In: Economics
using Linux please fill in the blanks :
telnos files:
|
telnos |
telnos2 |
|
Hale Elizabeth Bot 744-6892 |
Hale Elizabeth Bot 744-6892 |
|
telnos3 |
telnos 4 |
|
Hale Elizabeth Bot 744-6892 |
Hale Elizabeth Bot 744-6892 |
The file books contains the following information:
|
Subject |
Book Title |
Author's Last Name |
Author's First Name |
Pub. Date |
Price |
|
UNIX: |
Introduction to UNIX: |
Wrightson: |
Kate: |
2003: |
45.00: |
|
UNIX: |
Just Enough UNIX: |
Anderson: |
Paul: |
2003: |
39.00: |
|
UNIX: |
Bulletproof UNIX: |
Gottleber: |
Timothy |
2002: |
48.00: |
|
UNIX: |
Learning the Korn Shell: |
Rosenblatt: |
Bill: |
1994: |
35.95: |
|
UNIX: |
A Student's Guide to UNIX: |
Hahn: |
Harley: |
1993: |
24.50: |
|
UNIX: |
Unix Shells by Example: |
Quigley: |
Ellie: |
1997: |
49.95: |
|
UNIX: |
UNIX and Shell Programming: |
Forouzan: |
Behrouz: |
2002: |
80.00: |
|
UNIX: |
UNIX for Programmers and Users: |
Glass: |
Graham: |
1993: |
50.00: |
|
SAS: |
SAS Software Solutions: |
Miron: |
Thomas: |
1993: |
25.95: |
|
SAS: |
The Little SAS Book, A Primer: |
Delwiche: |
Lora: |
1998: |
35.00: |
|
SAS: |
Painless Windows for SAS Users: |
Gilmore: |
Jodie: |
1999: |
40.00: |
|
SAS: |
Getting Started with SAS Learning: |
Smith: |
Ashley: |
2003: |
99.00: |
|
SAS: |
The How to for SAS/GRAPH Software: |
Miron: |
Thomas: |
1995: |
45.00: |
|
SAS: |
The Output Delivery System: |
Haworth: |
Lauren: |
2001: |
48.00: |
|
SAS: |
Proc Tabulate by Example: |
Haworth: |
Lauren: |
1999: |
42.00: |
|
SAS: |
SAS Application Programming: |
Dilorio: |
Frank: |
1991: |
35.00: |
|
SAS: |
Applied Statistics & SAS Programming: |
Cody: |
Ronald: |
1991: |
29.50: |
issue the command:
sort -n -t: +4 books
What is the result? ________________________________________________________________________________________________________________________________________________
Try another sort using the books file. Sort on the price field in reverse. Type in the following:
sort -nr -t: +5 books
What was the result? _______________________________________________________________________________________________________________________________________________
Type in:
sort -t: +0 +1 books > newbooks
What does the sorted file look like now?
__________________________________________________________________________________________________________________________________________________________________
. Issue the command:
grep -n H telnos
What was printed? ________________________________________________________________________________________________________________________________________________________________________________________________________________________
Issue the command:
grep -ni m telnos
What was printed this time?___________________________________________________________________________________________________________________________________________________________________________________________________________________
In: Computer Science
1. What components of final expenditure (C, I, G, NX) if any, would the following transactions change? (provide numerical values for parts g and k)
a. A U.S. family buys a new refrigerator made in Illinois
b. A U.S. family buys a new refrigerator made in China
c. You buy a new house in Chicago
d. You buy a pizza from Dominos
e. California repaves U.S. highway one.
f. GM sells a car from its inventory of cars
g. You buy a house built in 2000. The house cost $120,000 in 2000, your purchase price is $200,000, of which $10,000 goes to a real estate agent as sales commission.
h. U.S. government spending for unemployment benefits increases because of increasing unemployment.
i. A parent pays $1,000 for daycare for their child.
j. Ben and Jerrys buy milk to make ice cream.
k. You buy $20 of yarn at a craft store. You use the yarn to make a sweater, which would cost $80 if sold at Target.
l. You pay rent for an apartment in a building that was built in 2002.
m. Fifth third bank lends a manufacturer $1,000,000.
n. The City of Chicago purchases new police cars
o. Wildfires destroy homes in California (do not count the cost of fighting the fires).
1. What components of final expenditure (C, I, G, NX) if any, would the following transactions change? (provide numerical values for parts g and k)
a. A U.S. family buys a new refrigerator made in Illinois
b. A U.S. family buys a new refrigerator made in China
c. You buy a new house in Chicago
d. You buy a pizza from Dominos
e. California repaves U.S. highway one.
f. GM sells a car from its inventory of cars
g. You buy a house built in 2000. The house cost $120,000 in 2000, your purchase price is $200,000, of which $10,000 goes to a real estate agent as sales commission.
h. U.S. government spending for unemployment benefits increases because of increasing unemployment.
i. A parent pays $1,000 for daycare for their child.
j. Ben and Jerrys buy milk to make ice cream.
k. You buy $20 of yarn at a craft store. You use the yarn to make a sweater, which would cost $80 if sold at Target.
l. You pay rent for an apartment in a building that was built in 2002.
m. Fifth third bank lends a manufacturer $1,000,000.
n. The City of Chicago purchases new police cars
o. Wildfires destroy homes in California (do not count the cost of fighting the fires).
In: Economics
ECO 2013 Principles of Macroeconomics Global Citizens Assignment
In this assignment, you will examine GDP for different countries and the factors that lead to different rates of economic growth among countries and you will be asked for your economic advice. ANSWER EACH NUMBERED QUESTION SEPARATELY.
1. GDP: Calculate the values to fill in the blanks in the shaded areas of the table below:
|
Expenditure Components of GDP by Country, 2015 (billions of US dollars) |
||||||||
|
Australia |
Canada |
Egypt |
Japan |
Mexico |
UK |
US |
South Africa |
|
|
Consumption |
717.3 |
894.2 |
259.8 |
2479.1 |
778.0 |
1857.7 |
12283.7 |
189.5 |
|
Investment |
||||||||
|
Business fixed investment |
316.8 |
367.9 |
45.4 |
1026.9 |
253.9 |
494.5 |
3576.6 |
64.8 |
|
Changes in inventories |
0.9 |
2.1 |
0.0 |
21.0 |
6.1 |
8.2 |
93.4 |
0.4 |
|
Government |
228.0 |
326.6 |
37.4 |
870.2 |
140.2 |
554.6 |
2604.9 |
65.0 |
|
Net Exports |
||||||||
|
Exports |
231.4 |
490.4 |
41.7 |
773.0 |
404.3 |
777.3 |
2264.3 |
96.6 |
|
Imports |
268.5 |
527.5 |
68.4 |
787.2 |
428.7 |
836.4 |
2786.3 |
99.8 |
|
GDP |
||||||||
|
Source: UNData, UN Statistics Division, data.un.org, GDP by Type of Expenditure at current prices – US dollars |
||||||||
2. Based on the information in the table and your calculations for Question #1:
Do any countries have positive net exports? ______ Which one(s)? ________________________
Which country has the largest negative net exports? ____________________________
3. Suppose that one of the countries above asks for your advice about trade. Policymakers in the country want information about the impact of trade on GDP and whether they should be concerned about negative (or positive) net exports. How would you respond?
4. Economic growth: Based on information from the World Bank, in 2016, GDP per capita was $57,467 in the United States and $59,977 in Iceland – very similar values (and high values compared to many countries). But, the annual rate of GDP growth averages 0.9% in the United States and 6.1% in Iceland.
Would you predict the United States or Iceland to have a more rapid increase in the standard of living in the long run?
_________________ Discuss what evidence/theory from Chapter 11 you are using to support this prediction.
5. Based on information from a variety of sources, out of all countries –
Saudi Arabia ranks 26th in healthcare while the United States ranks 31st
Saudi Arabia ranks 95th in the lack of civil unrest while the United States ranks 97th
Saudi Arabia ranks behind the United States in terms of education
Saudi Arabia has investment of 30.75% of GDP while the United States is 19.754%
All of this suggests that the standards of living in the United States and Saudi Arabia are very similar - using this, answer the question below.
?6. Suppose a country with a low standard of living asks for your advice on whether it should try to emulate Saudi Arabia or the United States in pursuing its goal of increasing its standard of living. What would you advise?
In: Economics
a. How do you calculate income elasticity?
b. If a commodity's income elasticity is 1, is it necessity or luxury good? Explain. What does that imply about the relative changes in income and quantity?
In: Economics
How and why has the financial service sector, especially depository institutions changed in the last 15 years? What are the benefits and costs of the changes including the impact on structure, performance and conduct of the industry?
In: Economics
Identify different types of solutions we can find in everyday life and in clinical settings. Give an example. Provide explanation and/or your suggestion what, if any, chemical changes occur in the solution
In: Chemistry
If the volume of the original sample in Part A (P1 = 742 torr , V1 = 33.0 L ) changes to 75.0 L , without a change in the temperature or moles of gas molecules, what is the new pressure, P2?
In: Chemistry