For any variable X,
ΔX = “change in
X ”, Δ is the Greek (uppercase) letter...
For any variable X,
ΔX = “change in
X ”, Δ is the Greek (uppercase) letter
delta, Examples: If ΔL = 1 and
ΔK = 0, then ΔY
= MPL.
More generally, if ΔK = 0, then
Δ(Y − T ) =
ΔY − ΔT , so
ΔC = MPC ×
(ΔY −
ΔT ) = MPC
ΔY − MPC
ΔT
Now Suppose MPC = 0.8 and
MPL = 20. For each of the following,
compute ΔS:
a.ΔG = 100...
You own a stock portfolio invested 15% in Stock Q, 15% in Stock
R, 20% in...
You own a stock portfolio invested 15% in Stock Q, 15% in Stock
R, 20% in Stock S, and 50% in Stock T. The betas for these four
stocks are 0.84, 1.17, 1.08, and 1.36, respectively. What is the
portfolio beta? (Do not round intermediate calculations. Round the
final answer to 3 decimal places.)
Two protons are initially moving towards each other with equal
speeds in the laboratory. They continue...
Two protons are initially moving towards each other with equal
speeds in the laboratory. They continue to exist after experiencing
a head-on collision that also produces a neutral pion of rest
energy 135 MeV. If the protons and the pion are all at rest after
the collision, find a) the initial kinetic energy of the protons,
and b) the initial speed of the protons.
Suppose you’re evaluating a new project costing 125 and yielding
an expected payoff of 75 for...
Suppose you’re evaluating a new project costing 125 and yielding
an expected payoff of 75 for the two subsequent years.
You know that the market(portfolio) rate is 0,10 that the
covariance of the new investment’s payoff with the market portfolio
is 0,2 and that the variance of the market payoff is 0,1.
You also know that the risk-free rate is 0,05. Would you accept
the project if you do not account for the risk embodied in the new
project? Why?...
An appliance dealer sells three different models of upright
freezers having 13.5, 15.9, and 19.3 cubic...
An appliance dealer sells three different models of upright
freezers having 13.5, 15.9, and 19.3 cubic feet of storage space.
Consider the random variable x = the amount of storage
space purchased by the next customer to buy a freezer. Suppose that
x has the following probability distribution.
x
p(x)
13.5
0.2
15.9
0.5
19.3
0.3
(a)
Calculate the mean and standard deviation of x (in
cubic feet). (Round your mean to 2 decimal places and your standard
deviation to...
A medical researcher believes that a drug changes the body's
temperature. Seven test subjects are randomly...
A medical researcher believes that a drug changes the body's
temperature. Seven test subjects are randomly selected and the body
temperature of each is measured. The subjects are then given the
drug, and after 30 minutes, the body temperature of each is
measured again. The results are listed in the table below. Is there
enough evidence to conclude that the drug changes the body's
temperature? Let d=(body temperature after taking drug)−(body
temperature before taking drug). Use a significance level of...
For one approach to this problem, consult Interactive
LearningWare 24.1. For each of the three sheets...
For one approach to this problem, consult Interactive
LearningWare 24.1. For each of the three sheets of polarizing
material shown in the drawing, the orientation of the transmission
axis is labeled relative to the vertical. The incident beam of
light is unpolarized and has an intensity of 1230 W/m2. What is the
intensity of the beam transmitted through the three sheets when 1 =
15.2°, 2 = 53.2°, and 3 = 95.4°?
9.3 A 60 W incandescent bulb costs $0.36 and lasts 1,000 hr; a
14 W CFL...
9.3 A 60 W incandescent bulb costs $0.36 and lasts 1,000 hr; a
14 W CFL bulb costs $4 and lasts 10,000 hr; and a 9.5 W LED bulb
costs $13 and lasts for 25,000 hr. At $0.15/kWh, A. Find the cost
of using incandescent bulbs for 25,000 hr. (Note: the cost includes
the initial cost of the bulbs plus the energy used for 25,000 hr.)
B. Find the cost of using CFLs for 25,000 hr. How much money is...
The London Eye, one of the largest Ferris Wheels, was recently
built near the bank of...
The London Eye, one of the largest Ferris Wheels, was recently
built near the bank of the river Thames in London. It has a
diameter of 394 feet and it takes 30 minutes for a complete
rotation. What is the centripetal force experienced by a 150 lb
person sitting in one of the passenger capsules?
Please answer correctly, thank you so much in advance!
Assume that our subsidiary reports the following financial
statements in Brazilian Real (R$):
Subsidiary
(in R$)...
Assume that our subsidiary reports the following financial
statements in Brazilian Real (R$):
Subsidiary
(in R$)
Income statement:
Sales
2,000,000
Cost of goods sold
(1,200,000)
Gross Profit
800,000
Operating expenses
(410,000)
Net income
390,000
Statement of retained earnings:
BOY retained earnings
978,500
Net income
390,000
Dividends
(39,000)
Ending retained earnings
1,329,500
Balance sheet:
Assets
Cash
318,600
Accounts receivable
627,000
Inventory
508,800
PPE, net
1,603,700
Total Assets
3,058,100
Liabilities and Stockholders’ Equity
Current Liabilities
323,400
Long-term Liabilities
635,200
Common Stock...
Review the financial statements for Jones Inc. and the
comparative financial ratios for the year-end review....
Review the financial statements for Jones Inc. and the
comparative financial ratios for the year-end review. Enter your
calculations and written analysis directly into the template, and
show or explain your work where appropriate.
Problem 1. Calculate the firm's 2015 financial ratios for
liquidity, activity (asset management), leverage (debt), and
profitability.
Problem 2. Analyze the firm's performance from both time-series
and cross-sectional points of view using the key financial ratios
provided in the template.
Problems 1 and
2
BALANCE SHEET...
Suppose that an Apple iPhone costs $200 in the United States,
£60 in the United Kingdom,...
Suppose that an Apple iPhone costs $200 in the United States,
£60 in the United Kingdom, and ¥40 comma 000 in Japan. If the
exchange rate between the pound and the dollar is $1.50 = £1, the
real exchange rate between the pound and the dollar is __ nothing.
(Enter your response rounded to two places.)
An expert reviews a sample of 10 scientific articles (n = 10)
and records the following...
An expert reviews a sample of 10 scientific articles (n = 10)
and records the following number of errors in each article: 9, 7,
0, 1, 4, 7, 6, 8, 0, and 3. Compute SS, variance, and standard
deviation for this sample using the definitional and computational
formula. (Round your answers to two decimal places.)
SS
variance
standard deviation
Snow Cap Springs produces and sells water filtration systems for
homeowners. Information regarding its three models...
Snow Cap Springs produces and sells water filtration systems for
homeowners. Information regarding its three models is shown
below.
basic
basic plus
premium
total
units sold
1,200
420
380
2,000
selling price
246
395
795
variable cost
197
290
417
The company’s total fixed costs to produce the filtration
systems are $147,924.
a) Determine the sales mix as a function of units sold for the
three products. (Round answers to 0 decimal places, e.g. 12.)
basic
basic plus
premium
the...