Suppose that we randomly select 50 billing statements from each of the computer databases of the Hotel A, the Hotel B, and the Hotel C chains, and record the nightly room rates. The means and standard deviations for the data are given in the table.
| Hotel A | Hotel B | Hotel C | |
|---|---|---|---|
| Sample Average ($) | 140 | 180 | 120 |
|
Sample Standard Deviation |
17.7 | 22.6 | 12.5 |
(a) Find a 95% confidence interval for the difference in the average room rates for the Hotel A and the Hotel B chains. (Use Hotel A − Hotel B. Round your answers to two decimal places.)
$______ to $______
(b)Find a 99% confidence interval for the difference in the average room rates for the Hotel B and the Hotel C chains. (Use Hotel B − Hotel C. Round your answers to two decimal places.)
$______ to $______
In: Statistics and Probability
Suppose that we randomly select 50 billing statements from each of the computer databases of the Hotel A, the Hotel B, and the Hotel C chains, and record the nightly room rates. The means and standard deviations for the data are given in the table.
| Hotel A | Hotel B | Hotel C | |
|---|---|---|---|
| Sample Average ($) | 140 | 180 | 120 |
| Sample Standard Deviation |
17.7 | 22.6 | 12.5 |
(a) Find a 95% confidence interval for the difference in the average room rates for the Hotel A and the Hotel B chains. (Use Hotel A − Hotel B. Round your answers to two decimal places.)
$______ to $______
(b)Find a 99% confidence interval for the difference in the average room rates for the Hotel B and the Hotel C chains. (Use Hotel B − Hotel C. Round your answers to two decimal places.)
$______ to $______
In: Statistics and Probability
Suppose that we randomly select 50 billing statements from each of the computer databases of the Hotel A, the Hotel B, and the Hotel C chains, and record the nightly room rates. The means and standard deviations for the data are given in the table.
| Hotel A | Hotel B | Hotel C | |
|---|---|---|---|
| Sample Average ($) | 140 | 180 | 120 |
| Sample Standard Deviation |
17.7 | 22.6 | 12.5 |
(a) Find a 95% confidence interval for the difference in the average room rates for the Hotel A and the Hotel B chains. (Use Hotel A − Hotel B. Round your answers to two decimal places.)
$______ to $______
(b)Find a 99% confidence interval for the difference in the average room rates for the Hotel B and the Hotel C chains. (Use Hotel B − Hotel C. Round your answers to two decimal places.)
$______ to $______
In: Statistics and Probability
Economics is everywhere – even in South Park. If you’re not familiar, South Park is an animated sitcom for adults featuring the adventures of four grade-school boys in the town of South Park, Colorado. In season 13, episode 14, the boys went to Pi Pi’s Water Park. Everybody is peeing in the pool and the pee concentration ends up being so high that it causes a flood that destroys the place. You can watch a clip of the episode here:
Tragedy of the Commons on South Park - Peeing in the Pool
While this is a silly example of tragedy of the commons, there are far more serious examples.
"More widespread wearing of face masks could prevent tens of thousands of deaths by COVID-19, epidemiologists and mathematicians project.
A model from the University of Washington's Institute for Health Metrics and Evaluation shows that near-universal wearing of cloth or homemade masks could prevent between 17,742 and 28,030 deaths across the US before Oct. 1.
The group, which advises the White House as well as state and local governments, is submitting the model for peer review, says Theo Vos., Professor of Health Metrics Sciences at IHME.
Another projection developed by researchers at Arizona State University in April showed that 24–65% of projected deaths could be prevented in Washington state in April and May if 80% of people wore cloth or homemade masks in public.
These projections shed light on the promises face masks might hold as COVID-19 cases surge in some states and more local authorities mandate the wearing of face masks."
There are several people against face mask wearing despite the recommendations from scientists and healthcare officials. See an example below:
Viewers furious with Walmart shoppers not wearing face masks
There are several options to solving or preventing the tragedy of the commons. Think about what the scientists are saying about how "Face Masks" can reduce the spread of COVID-19 and then answer the following questions:
In: Economics
Q1)According to economists, the biggest “cost” of unemployment is
a. increased “welfare” expenditures. c. the value of foregone output.
b. lost tax revenue. d. none of these.
Q2)
Which of the following statements is LEAST correct?
a. Inflation is a period of time during which the value of money is rising.
b. Affluent people – with assets other than money – can and often do benefit from inflation.
c. Both World War II (during the early 1940s) and the Vietnam War (during the late 1960s)
generated what’s known as demand-pull inflation.
d. “The Energy Crisis” of the 1970s generated what’s known as cost-push inflation.
Q3) The type of unemployment that economists find most concerning is
a. frictional unemployment. c. structural unemployment.
b. cyclical unemployment. d. voluntary unemployment.
In: Economics
Lifetime Escapes generates average revenue of $7 970 per person on its 7-day package tours to wildlife parks in Zimbabwe. The variable costs per person are as follows:
|
Airfare |
$1600 |
|
Hotel accommodations |
3000 |
|
Meals |
500 |
|
Ground transportation |
400 |
|
Park tickets and other costs |
500 |
|
Total |
$6000 |
Annual fixed costs total $400 000.
Required:
question is correct could you please solve ASAP
In: Accounting
A survey found that womens heights are normally distributed with mean 62.1 in and standard deviation 2.1 in the survey also found that mens heights are normally distributed with a mean 69.7 and SD 3.8 a) most of the live characters at an amusement park have height requirements with a minimum of 4ft 9in and a maximum of 6ft 4in find the percentage of women meeting the height requirement the percentage of woment who meet the height requirement? (round to two decimal places as needed) b) find the percentage of men meeting the height requirement the percentage of men meeting the height requirement (round to two decimal places as needed ) c) If the height requirements are changed to exclude only the tallest 5% of men and the shortest 5% of women what are the new height requirements the new height requirements are at least ___ in. and at most ___ in. (round to one decimal place as needed)
In: Statistics and Probability
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
In: Accounting
Problem 18-09 Concord Construction Company has entered into a contract beginning January 1, 2020, to build a parking complex. It has been estimated that the complex will cost $606,000 and will take 3 years to construct. The complex will be billed to the purchasing company at $891,000. The following data pertain to the construction period. 2020 2021 2022 Costs to date $260,580 $466,620 $618,000 Estimated costs to complete 345,420 139,380 –0– Progress billings to date 272,000 551,000 891,000 Cash collected to date 242,000 501,000 891,000 (a) Using the percentage-of-completion method, compute the estimated gross profit that would be recognized during each year of the construction period. (If the answer is 0, please enter 0. Do not leave any fields blank.) Gross profit recognized in 2020 $ Gross profit recognized in 2021 $ Gross profit recognized in 2022 $ (b) Using the completed-contract method, compute the estimated gross profit that would be recognized during each year of the construction period. (If the answer is 0, please enter 0. Do not leave any fields blank.) Gross profit recognized in 2020 $ Gross profit recognized in 2021 $ Gross profit recognized in 2022 $ Please show working. Thank you.
In: Accounting
Investment Timing Option: Decision-Tree Analysis Kim Hotels is interested in developing a new hotel in Seoul. The company estimates that the hotel would require an initial investment of $22 million. Kim expects the hotel will produce positive cash flows of $3.74 million a year at the end of each of the next 20 years. The project's cost of capital is 12%.
What is the project's net present value? A negative value should be entered with a negative sign. Enter your answer in millions. For example, an answer of $1.2 million should be entered as 1.2, not 1,200,000. Round your answer to two decimal places. $ million
In: Finance