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You are in the market for a new car. You want to check whether there is a significant difference between the fuel economy of mid-size domestic cars and mid-size import cars. You sample 25 domestic car makes and find an average fuel economy of 33.412 MPG with a standard deviation of 4.18 MPG. For imports, you sample 16 cars and find an average MPG of 34.884 MPG with a standard deviation of 6.124. If a 95% confidence interval is calculated to estimate the difference between the average fuel economy of domestic and import mid-size cars, what is the margin of error? Assume both population standard deviations are equal.
1) 2.023
2) 1.606
3) 3.249
4) 3.148
5) 2.706
Under the pressure from the Congress, the U.S. Federal government has been working hard to reduce, or at least not to expand, the budget deficits and national debts. Meanwhile, the Fed keeps pumping money into the economy since the financial crisis t..
Suppose you are deciding whether to install rooftop solar panels on your house. The immediate installation cost is $1100. A year from now, you will start collecting annual benefits equal to $300 per year. After collecting these benefits for 4 years, ..
Suppose the cost function is C(Q) = 50 + Q -10Q(squared)+ 2Q(cubed). What is the total cost of producing 10 units? Show your work
An average worker in Brazil can produce an ounce of soybeans in 20minutes and an ounce of coffee in 60 minutes, while an average worker in Per can produce an ounce of soybeans in 50 minutes and anounce of coffee in 75 minutes.
Solve the following system of simultaneous equation and graph the results. Y = 50 +2x (1) Y = 100 -0.5x (2). Assume that the intercept of equation 1 from problem 4 has increase by 5 units. Graph the new and old equations. Assume that the slope of equ..
Discuss how successful airlines control the use of discount fares by imposing and enforcing appropriate conditions on these fares, and how they utilize state-of-the art revenue management systems. Provide an example(s).
q.a consumer is in equilibrium at point a in the accompanying figure. the price of good x is 5.a. illustrate what is
If you are asked to forecast the demand (sales) for the public listed company like Home Depot, which method(s) would you prefer to use? After you select a specific method (or several methods), explain what factors should be included in your evaluatio..
In The General Theory of Employment, Interest, and Money, John Maynard Keynes wrote: If the Treasury were to fill old bottles with banknotes, bury them at suitable depths in disused coal mines which are then filled up to the surface with town rubbish..
Now suppose the parameters of the model take the following values. what is the growth rate of output per person in this economy? what is the initial level of output per person? What is the level of output per person after 100 years?
As the first President of the United States of America, George Washington was aware that many of his actions would be regarded as precedents, meaning that many of the decisions he made in his presidency would inform the decisions of future Presidents..
The quantity demanded of the resource in each year is given by the equation Qt = 10 - Pt . The marginal cost of extraction is zero.
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