Questions
The data in the table represent the weights of various domestic cars and their miles per...

The data in the table represent the weights of various domestic cars and their miles per gallon in the city for the 2008 model year. For these​ data, the​ least-squares regression line is ModifyingAbove y with -0.006x + 42.216. A twelfth car weighs 3,425 pounds and gets 12 miles per gallon.

​(a) Compute the coefficient of determination of the expanded data set. What effect does the addition of the twelfth car to the data set have on Rsquared​? ​

(b) Is the point corresponding to the twelfth car​ influential? Is it an​ outlier?

Car, Weight (pounds) x, Miles per Gallon y
1 3766 20
2 3989 21
3 3532 20
4 3170 22
5 2575 28
6 3735 20
7 2605 27
8 3772 18
9 3310 19
10 2993 26
11 2755 25

In: Math

Suppose that wages in Miami among the immigrant population are $20,000 a year and everywhere else...

Suppose that wages in Miami among the immigrant population are $20,000 a year and everywhere else outside the United States they are $10,000. Suppose the cost of migrating to Miami is proportional to how far someone must travel.   The cost of migrating is M=$36,000+ 20m, where m is the number of miles an immigrant’s origin country is from Miami. Please use this information to answer the following questions.

1. If Colombia is 1,500 miles from Miami, what is the maximum subjective discount factor that a Colombian migrant would have and still choose to immigrate to Miami?

2. If Cuba is 200 miles from Miami, what is the maximum subjective discount factor that a Cuban migrant could have and still choose to immigrate to Miami?

3. Based on the prior two questions should we see more migrants from Cuba or Colombia come to Miami?

Select one:

a. Cuba

b. Columbia

In: Economics

A certain region would like to estimate the proportion of voters who intend to participate in...

A certain region would like to estimate the proportion of voters who intend to participate in upcoming elections. A pilot sample of 25 voters found that 15 of them intended to vote in the election. Determine the additional number of voters that need to be sampled to construct a 98​% interval with a margin of error equal to 0.06 to estimate the proportion.

The region should sample _______________ additional voters. ​(Round up to the nearest​ integer.)

________________________________________________________________________________________________

A tire manufacturer would like to estimate the average tire life of its new​ all-season light truck tire in terms of how many miles it lasts. Determine the sample size needed to construct a 96​% confidence interval with a margin of error equal to 3,200 miles. Assume the standard deviation for the tire life of this particular brand is 7,000 miles.

The sample size needed is____ . ​(Round up to the nearest​ integer.)

In: Math

Using the Java programming language: Create and implement a class Car that models a car. A...

Using the Java programming language: Create and implement a class Car that models a car. A Car is invented to have a gasoline tank that can hold a constant max of 12.5 gallons, and an odometer that is set to 0 for a new car. All cars have an original fuel economy of 23.4 miles per gallon, but the value is not constant.

Provide methods for constructing an instance of a Car (one should be zero parameter, and the other should take one parameter, namely a value for the fuel efficiency). Additional method simulates the car traveling a given number of miles (at the end of traveling that user-specified distance, the odometer is updated and the gas tank level is reduced by an elementary calculation using the miles driven and fuel efficiency), to fill a given number of gallons to the tank, to get the odometer reading, and to get the gas tank level in gallons. (Test case that makes sure the tank isn’t already at capacity)

In: Computer Science

Java Program. !ONLY USING WHILE LOOPS! (Completed but with errors, wanted to revise could anyone re-create...

Java Program. !ONLY USING WHILE LOOPS!

(Completed but with errors, wanted to revise could anyone re-create this?)

Write a program to keep track of the number of miles you have driven during an extended vacation and the number of gallons of gasoline you used during this time, recorded at weekly intervals. This vacation will last over several weeks (the precise number of weeks while making the program is unknown to the coder). Ask the user to enter the number of miles driven afterward ask them how many gallons of gasoline they purchased for each week of the vacation. If the user enters -99 when asked for the number of miles driven, the vacation is over and the program will end by printing "Vacation Over!".   Express all numeric values rounded to the nearest hundredth.  

The task is to create this in Java using only while loops.

Thank you.

In: Computer Science

(Materials Testing Results) Q: The 30% rubber group reported a strain at yield of 0.38 and...

(Materials Testing Results)

Q: The 30% rubber group reported a strain at yield of 0.38 and a strain at break of 0.3. Please explain this change.

In: Mechanical Engineering

1. Given a population in where the probability of someone being left handed is 0.3, people...

1. Given a population in where the probability of someone being left handed is 0.3,
people is taken then...

Calculate the probability the proportion of left-h

In: Statistics and Probability

In the following, S0 is the stock price in dollars as of today, K is the...

In the following, S0 is the stock price in dollars as of today, K is the strike price in dollars, r is the continuously-compounded risk-free interest (as a decimal), q is the continuous dividend yield (as a decimal), sigma is the volatility (as a decimal) and T is the time to maturity in years. Compute option prices in dollars for the following types of options and the following parameter values with a three step binomial tree.

A. S0 = 100, K = 100, r = 0.07, q = 0.05, sigma = 0.3, T = 1. European call. What is the price in dollars today?

B. S0 = 100, K = 100, r = 0.07, q = 0.05, sigma = 0.3, T = 1. European put. What is the price in dollars today?

C. S0 = 100, K = 100, r = 0.07, q = 0.05, sigma = 0.3, T = 1. American call. What is the price in dollars today?

D. S0 = 100, K = 100, r = 0.07, q = 0.05, sigma = 0.3, T = 1. American put. What is the price in dollars today?

We define the “Early exercise premium” to the difference between the American option price and the corresponding European option price. For the case of call options, and S0 = 100, r = 0.07, q = 0.05, sigma = 0.3, T = 1.

E. What is the Early exercise premium when K = 100?

F. What is the Early exercise premium when K = 125?

G. What is the Early exercise premium when K = 75?

H. What is the Early exercise premium when K = 60?

I. In the case that S0 = 100, r = 0.07, q = 0.05, sigma = 0.3, T = 1, and for an American call option with strike K = 60, what is the price in dollars today?

J. In the case that S0 = 100, r = 0.07, q = 0.05, sigma = 0.3, T = 1, and for an American call option with strike K = 60, at what time would a holder of the option optimally exercise?

All the questions above set the dividend yield to q = 0.05. Change the dividend yield to q = 0.10 and answer the questions corresponding to questions E, F, G and H above.

K. What is the Early exercise premium when the dividend yield q = 0.10 and K = 100?

L. What is the Early exercise premium when the dividend yield q = 0.10 and K = 125?

M. What is the Early exercise premium when the dividend yield q = 0.10 and K = 75?

N. What is the Early exercise premium when the dividend yield q = 0.10 and K = 60?

Now set the dividend yield q = 0.10 and the strike K = 75. . For the case of the European call, q = 0.10 and K = 75, what is the Delta (position in stock to make portfolio of the stock and a short position in one option riskless).

P. For the case of the American call, q = 0.10 and K = 75, what is the Delta (position in stock to make portfolio of the stock and a short position in one option riskless).

In: Finance

Heating, Ventilating and Air Conditioning (HVAC) Systems create and maintain the levels of comfort required by...

Heating, Ventilating and Air Conditioning (HVAC) Systems create and maintain the levels of comfort required by guests and employees. HVAC systems must be properly selected, operated and maintained if they are they are to provide an appropriate level of comfort.

How do you think a hotel building stays cool?

In: Operations Management

Discuss four risks that your company is likely to be exposed to if it goes ahead...

Discuss four risks that your company is likely to be exposed to if it goes ahead with debt finance as a source of finance and explain with 5 points how this decision will affect the return to the equity holders or shareholders of your company (hotel) following the arguments of M&M proposition 2.

In: Finance