In: Civil Engineering
A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 80
thousand miles and a standard deviation of 10 thousand miles.
How many miles will be traveled by at least 70% of the trucks?
The number of miles that will be traveled by at least 70% of the trucks is ___miles.
(Round to the nearest mile as needed.)
d. What are your answers to parts (a) through (c) if the standard deviation is
6thousand miles?
If the standard deviation is 6thousand miles,the proportion of trucks that can be expected to travel between68and80 thousand miles in a year is nothing.
(Round to four decimal places as needed.)
If the standard deviation is
6thousand miles,thepercentage of trucks that can be expected to travel either less than 70or more than 95 thousand miles in a year is ___%.
(Round to two decimal places as needed.)
If the standard deviation is
6 thousand miles, the number of miles that will be traveled by at least 70% of the trucks is___
miles.
(Round to the nearest mile as needed.)
In: Statistics and Probability
The hurricane in the Bahamas caused a small decrease in the supply of hotel rooms but a very large decrease in demand for hotel rooms as tourists cancel their planned trips. The result of these two effects on the market for hotel rooms is:
Group of answer choices
an increase in the equilibrium price and a decrease in the equilibrium quantity
a decrease in the equilibrium price and a decrease in the equilibrium quantity
an unknown change in the equilibrium price and a decrease in the equilibrium quantity
a decrease in the equilibrium price and an unknown change in the equilibrium quantity
In: Economics
There are 750,000 residents in a city. Based on a government poll, they fall within three groups regarding their willingness to pay for the construction of a park.
- 200,000 of the residents are not willing to pay for the park at all,
- 250,000 residents are willing to pay $12,
- 300,000 are willing to pay $100.
The cost of the park will be $15 million. Should it be built? Why or why not?
Would this answer change if the only way to pay for it is to divide the cost equally across each of the 750,000 residents? Why or why not?
In: Economics
IN JAVA
Write a program that calculates the occupancy rate for each floor of a hotel. (Use a sentinel value and please point out the sentinel in bold.) The program should start by asking for the number of floors in the hotel. A loop should then iterate once for each floor. During each iteration, the loop should ask the user for the number of rooms on the floor and the number of them that are occupied. After all the iterations, the program should display the number of rooms the hotel has, the number of them that are occupied, the number that are vacant, and the occupancy rate for the hotel. Input Validation: Do not accept a value less than 1 for the number of floors. Do not accept a number less than 10 for the number of rooms on a floor.
In: Computer Science
Exercise 5.4
Refer back to exercise 2.2. Suppose that you fit the model to 20
data points and found that your F – value for testing the model is
useful is 49.75.
Exercise 2.2
A hotel manager is concerned about hotel room rates for a large
chain of hotels. The variables to be used in this research is
defined as follows:
Y = the daily rate of a room
X1 = the population of the city
X2 = the rating of the hotel (1 star to 5 stars)
X3 = the number of rooms in the hotel
X4 = the number of hotels in the city
Answer the following:
A.) Now conduct the F-test for model utility.
B.) In exercise 5.4, what is the conclusion?
| a. |
the model is not useful |
|
| b. |
the model is useful |
|
| c. |
the results are inconclusive |
In: Math
a. In the hotel industry, package rate refers to a...
| A. | room sold using a fade rate. | |
| B. | rooms that is sold at full or "rack" rate. | |
| C. | group of hotel products and service sold for one price. | |
| D. | rooms rate discount offered to members of a consortium. |
b. Which is the best description of an individual hotel's competitive set?
| A. | Hotels located in close proximity to the individual hotel | |
| B. | Hotels that offer the same rate as the individual hotel | |
| C. | Hotels with the same brand affiliation as the individual hotel | |
| D. | Hotels with which the individual hotel directly competes |
c. In the short run, when room supply is held constant...
| A. | changes in room demand will not affect the selling prices of rooms. | |
| B. | a decrease in demand for rooms typically leads to a decreased selling price. | |
| C. | a decrease in demand for rooms typically leads to an increase in selling price. | |
| D. | an increase in demand for rooms typically leads to a decreased selling price. |
d. GOPPAR is best defined as hotel's...
| A. | revenue less management controllable costs per available room. | |
| B. | ADR x RevPAR x Occupancy % | |
| C. | revenue less management controllable costs per sold room. | |
| D. | ADR x RevPAR |
In: Operations Management
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
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
float miles; //miles traveled
float hours; //time in hours
float milesPerHour; //calculated miles per hour
cout << "Please input the Miles traveled" << endl;
cin >> miles;
cout << "Please input the hours traveled" << endl;
cin >> hours;
milesHours = miles / hours;
cout << fixed << showpoint << setprecision(2);
cout << "Your speed is " << milesPerHour << " miles per hour" << endl;
return 0;
}
1. Rewrite the above program such that function main call a return type function named findMilesPerHours to calculate the number of miles per hours. Finish function prototype, call and function definition.#include <iostream>
#include <iomanip>
// Function prototype here
……………………………………………………………………..
using namespace std;
int main()
{
float miles; //miles traveled
float hours; //time in hours
float milesPerHour; //calculated miles per hour
cout << "Please input the Miles traveled" << endl;
cin >> miles;
cout << "Please input the hours traveled" << endl;
cin >> hours;
// Function call here
……………………………………………………………………..
cout << fixed << showpoint << setprecision(2);
cout << "Your speed is " << milesPerHour << " miles per hour" << endl;
return 0;
}
// Function definition here
……………………………………………………………………..
#include <iostream>
#include <iomanip>
using namespace std;
// Function prototype here
……………………………………………………………………..
int main()
{
float miles; //miles traveled
float hours; //time in hours
float milesPerHour; //calculated miles per hour
cout << "Please input the Miles traveled" << endl;
cin >> miles;
cout << "Please input the hours traveled" << endl;
cin >> hours;
// Function call here
……………………………………………………………………..
cout << fixed << showpoint << setprecision(2);
cout << "Your speed is " << milesPerHour << " miles per hour" << endl;
return 0;
}
// Function definition here
……………………………………………………………………..
In: Computer Science
The Tiny Toy Company makes three types of new toys: the tiny
tank, the tiny truck, and the tiny turtle. Plastic used in one unit
of each is 1.5, 2.0 and 1.0 pounds, respectively. Rubber for one
unit of each toy is 0.5, 0.5, and 1.0 pounds, respectively. Also,
each tank uses 0.3 pounds of metal and the truck uses 0.6 pounds of
metal during production. The average weekly availability for
plastic is 16,000 pounds, 9,000 pounds of metal, and 5,000 pounds
of rubber. It takes two hours of labor to make one tank, two hours
for one truck, and one hour for a turtle. The company allows no
more than 40 hours a week for production (priority #1). Finally,
the cost of manufacturing one tank is $7, 1 truck is $5 and 1
turtle is $4; a target budget of $164,000 is initially used as a
guideline for the company to follow.
a) Minimize over-utilization of the weekly available supply of
materials used in making the toys and place twice as much emphasis
on the plastic (priority #2)
b) Minimize the under and over-utilization of the budget. Maximize
available labor hour usage (priority #3).
Formulate the above decision problem as a single linear goal
program. Clearly identify your achievement vector (i.e., hierarchy
of priority levels for the goals). Do not solve.
In: Advanced Math