Luke Company has three divisions: Peak, View, and Grand. The
company has a hurdle rate of 6.51 percent. Selected operating data
for the three divisions follow:
| Peak | View | Grand | ||||
| Sales revenue | $ | 338,000 | $ | 236,000 | $ | 309,000 |
| Cost of goods sold | 211,000 | 116,000 | 191,000 | |||
| Miscellaneous operating expenses | 41,000 | 38,000 | 38,000 | |||
| Average invested assets | 1,260,000 | 880,000 | 1,165,000 | |||
|
1. Compute the return on investment for each division. (Enter your ROI answers as a percentage rounded to two decimal places, (i.e., 0.1234 should be entered as 12.34%.)) (Find peak%,view% and grand % for ROI 2. Compute the residual income for each division. (Loss amounts should be indicated by a minus sign. Round your answers to nearest whole dollar.) (Find peak,view and grand.) |
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In: Accounting
Suppose the government taxes the wealthy at a higher rate than it taxes the poor and then develops programs to redistribute the tax revenue from the wealthy to the poor. This redistribution of wealth is a. is more efficient and more equal for society. b. is more efficient but less equal for society. c. is more equal but less efficient for society. is less equal and less efficient for society.
Bridget drinks three soda during a particular day. The marginal benefits she enjoys from drinking the third soda. a. can be thought of as the total benefit Bridget enjoys by drinking three sodas minus the total benefit she would have enjoyed by drinking just two sodas. b. determines Bridget's willingness to pay for the third soda. c. is likely different from the marginal benefit provided to Bridget by the second soda.
In: Economics
Daily sales of bagels at a local bakery is a random variable normally distributed with a mean of $600 and a standard deviation of $60. If sales are $540, what is the value of z?
A credit card company found that its customers charge between $100 and $1,100 per month. If this random variable is uniformly distributed, the standard deviation of the monthly amount charged equals $____. Round your answer to the nearest cent.
A clothing store analyzed customer purchases over the past year and found them to be normally distributed with a mean of $110 and a standard deviation of $12. The probability that a randomly selected person spent between $87 and $138 at the store last year is ____% Round to two decimals.
A credit card company found that its customers charge between $100 and $1,100 per month. If monthly amount charged is uniformly distributed, the probability that a person charges less than $200 per month is ____%
An economics professor gives an A grade to any student scoring in the top 8.5% of her Principles of Economics class. If the scores are normally distributed with a mean of 70% and a standard deviation of 5%, the minimum grade a student must score to receive a grade of A is _____%. Round to two decimal places.
A random survey of adult Canadians indicated that the mean number of hours spent watching television per week was 9 with a standard deviation of 1.5 hours. If hours watching television per week is a normally distributed variable, the probability of randomly selecting a Canadian adult and finding that they watch somewhere between 10 and 12 hours of television per week is ____%. Round your answer to 2 decimal places.
The mean cholesterol level of 40 to 60-year-old women surveyed in a particular country was found to be 5 mmol/l with a standard deviation is 1 mmol/l. About 4% of all women in this age category would have a cholesterol level below _____ mmol/l? Leave two decimal places in your answer.
Suppose a train arrives at a stop every 30 minutes between 5 a.m. and 11:30 p.m. The time that a passenger will wait for the train is uniformly distributed from 0 to 30 minutes. The probability a passenger will wait more than 25 minutes is ____%. Round your answer to 2 decimal places.
In: Statistics and Probability
A survey has been conducted in canteen during the lunch time. The average number of customers arrived in a 5-minute interval is 8.
a) What is the probability that exactly 3 customers will arrive in a 2-minute interval?
b) What is the probability that less than 3 customers will arrive in a 4-minute interval?
c) What is the probability that more than 1 customers will arrive in a 30-second interval?
In: Statistics and Probability
Answer the questions below.
|
(a) A researcher measured the shoe size and math ability of a large group of children. He found that having a larger shoe size does not indicate that a child has more or less math ability. What does his analysis show? -There is no correlation between shoe size and math ability. -There is a correlation between shoe size and math ability. There may or may not be causation. Further studies would have to be done to determine this. -There is a correlation between shoe size and math ability. There is probably also causation. This is because there is likely an increase in math ability with an increase in shoe size. (b) A grocery store collected sales data. It found that when customers buy less bread, they tend to purchase more rice. What can we conclude? -There is no correlation between amount of bread bought and amount of rice purchased. -There is a correlation between amount of bread bought and amount of rice purchased. However, there is no causation. This is because there is an increase in the amount of rice purchased with a decrease in the amount of bread bought. -There is a correlation between amount of bread bought and amount of rice purchased. There may or may not be causation. Further studies would have to be done to determine this. (c) Joe compared the player statistics from his team's tennis season. He determined that being taller implies that a player has faster serves. What should he say based on his findings? -There is no correlation between height and serve speed. -There is a correlation between height and serve speed. There may or may not be causation. Further studies would have to be done to determine this. -There is a correlation between height and serve speed. However, there is no causation. This is because there is an increase in serve speed with an increase in height. |
In: Statistics and Probability
Jessica Simpson sets up shop to sell “Buffalo Wings.” She
observes that if the price drops from $3.50 per order to $2.50 per
order, her daily sales rise from 300 to 500 orders.
A. What is the price elasticity of demand for Jessica’s “Buffalo
wings?”
B. Which price yields the greater total revenue?
C. Jessica is considering adding a new product, widgets, to the
menu. She has experimented and discovered that a 10% increase in
the price of wings causes a 20% increase in the quantity of widgets
sold. What is the cross elasticity of demand between widgets and
wings? Are they complements or substitutes??
D. What is the difference between the price elasticity of demand
and the slope of the demand curve? Are they the same concept? Are
they even related concepts?
In: Economics
Determine the profit maximizing quantity and profit levels; and then graph (in general form) the outcomes for the production function ( standard form with q(K,L) curve ) , cost/revenue functions (with MC, AC, and P curve/line) and profit function ( profit (q) curve ) for the following all graphs have to display q*: 1. C(q)=1000+q^2, P=10000 2. C(q)=1000+4q^3, P=10000 3. C(q)=1000+q^1.5, P=10000 4. Explain the differences between your outcomes and give a plausible reason for the difference between 1 & 2 and then for 1 & 3. Specifically: what changed, what didn't, what the effects are, and why.
In: Economics
1. The mass of a liquid is 200 cg and its volume is 50 cm3. Report its density in g/mL.
2. The specific heat of copper is 0.093 cal/g °C and
the specific heat of silver is 0.057 cal/g °C. If 200 cal of heat
is added to 1g of each, which of them will have a higher
temperature?
3. Calculate the heat energy evolved when 5.46 g of
water rises in temperature from 25 °C to 74 °C. (the specific heat
capacity of water is 4.18 J/g °C)
4. A 0.9% NaCl solution and a 5% glucose solution are
isotonic to the cells of the body. State any changes that would
occur, if a red blood cell was place in a 7% NaCl solution and
explain why.
5. What is the relationship between the concentration
of a base and its alkalinity/basicity?
6. Calculate the pH of a solution that has a pOH of 12.
What is the [H+]?
7. Calculate the [H+] of a solution with a pH of 4.7.
Is this substance acidic or basic?
8. What is the pH of a solution with [OH-] of 2.35 ×
10-5?
9. What is the pH of a solution with [H+] = 3.62 ×
10-4?
10. pH + pOH =
In: Chemistry
The Rockwell hardness of a metal is determined by impressing a hardened point into the surface of the metal and then measuring the depth of penetration of the point. Suppose the Rockwell hardness of a particular alloy is normally distributed with mean 71 and standard deviation 3.
a)If a specimen is acceptable only if its hardness is between 70 and 74, what is the probability that a randomly chosen specimen has an acceptable hardness? (Round your answer to four decimal places.)
b) If the acceptable range of hardness is (71 − c, 71 + c), for what value of c would 95% of all specimens have acceptable hardness? (Round your answer to two decimal places.)
c) If the acceptable range is as in part (a) and the hardness of
each of ten randomly selected specimens is independently
determined, what is the expected number of acceptable specimens
among the ten? (Round your answer to two decimal places.)
d)What is the probability that at most eight of ten independently
selected specimens have a hardness of less than 73.52?
[Hint: Y = the number among the ten specimens
with hardness less than 73.52 is a binomial variable; what is
p?] (Round your answer to four decimal places.)
In: Statistics and Probability
Chapter Case: Campus Bikes
Campus Bikes is a popular bicycle shop located near a major
university. The business has grown and the owner, Mark Turner,
wants to install an up-to-date computer system to handle all
business functions.
Background
Campus Bikes sells several brands of new bikes, including
everything from high-end racing models to beach cruisers. In
addition to sales of new bikes and accessories, Mark’s service
department is always busy. The staff includes Mark himself, a
bookkeeper, two part-time sales reps, a full-time mechanic, and
several part-time service helpers who assemble bikes.
Before opening the shop three years ago, Mark worked for many years
in his father’s auto dealership, Turner Motors, and he learned all
about the automobile business. In the bike shop, he runs a similar
operation, but on a much smaller scale. For example, sales orders
are recorded on pre-printed forms, and service requests are written
up just as they would be in an auto service department.
Mark’s customers find him fair and reasonable. He likes to say that
the main difference between his business and a big-box retailer is
that he knows his customers and will do whatever it takes to keep
them happy.
You work at the college as a lab assistant in the computer
information department. You earned a computer science degree at a
two-year school, and you recently decided to work toward your
four-degree. The computer lab manager, Jill, often suggests that
local businesses contact you for help in troubleshooting IT
issues.
This morning, you received a call from Mark, who wants to hire you
as a consultant to help plan a system for Campus Bikes. You learned
that Jill had referred him, and you are excited to have this
opportunity. It probably didn’t hurt that both you and Jill had
bought bikes from Mark, and already knew him. After spending
several weekends talking with Mark and the staff, you are ready to
start. You decide to use an object-oriented approach that will be
easy to understand.
Tasks
1. List possible objects in the new bike shop system, including
their attributes and methods. Do not draw a diagram for this. Just
a three column list will be appropriate.
2. Identify three possible use cases and actors.
3. Create a use case diagram that shows how service requests are
handled. This diagram should be drawn similar to Figure 6-16 on
page 189 of the text. Be sure to use the actors and use cases
appropriate for this case as detailed above.
4. Create a state transition diagram that describes typical
customer states and how they change based on specific actions and
events. You can find an example of a state transition diagram in
Figure 6-21 on page 192 of the text.
In: Computer Science