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a. The standard deviation of a normal random variable is 20. If a sample of 225 is selected out of a large population, what is the standard error of the mean? Round your answers to 3 decimal places.
b. The average age of a vehicle registered in the United States is 8 years, or 96 months. If a random sample of 36 vehicles is selected, find the probability that the mean of their age is between 98 and 100 months?Assume the standard deviation for the population is 15. Round your answers to 4 decimal places.
A firm has fixed cost of $100 and average variable cost of $5 X Q, where Q is the number of units produced. a. Construct a table showing total cost for Q from 0 to 10 b. Graph the firm's curves for marginal cost and average total cost.
In order to pay for those expenditures, Congress also approved a $100 billion increase in individual income taxes. Will these actions by Congress expand or contract the economy or are they just useless actions?
Find an article that discusses the current state of the U.S. economy. Take this article and write a three-paragraph summary of the article. In your summary, include any references to GDP or U.S. economic policy.
Plato, a Greek philosopher who lived from 427BC to 347BC, famously wrote that, "Necessity is the mother of inventions."you agree with this statement.
a. What is the equation of exchange? b. In the equation of exchange, if V doubled, what would happen to nominal GDP as a result? c. In the equation of exchange, if V doubled and Q remained unchanged, what would happen to the price level as a result?
One of the determinants of demand is consumer's disposable income. In reference to this, what will happen to demand if the government increases income tax
A consumer has preferences over goods x and y. The utility function is U=sqrtx + sqrty. The marginal utilities are MUx=1/(2sqrtx) and MUy=1/(sqrty). Calculate MRS and determine if it is diminishing for this utility function. Does the indifference ..
At what level of car production will the company be better off using two factories instead of one?
Later Henry ford invented the assembly line for manufacturing automobiles, other automobile firms copied his invention.
many people shy away from careers in selling often because they think they are not outgoing enough or because
Assume that the market labor supply and labor demand equations are given through Qs = 5W and Qd = 30 - 5W. If a minimum wage is set at $4.00 (W = 4),
The standard economic model predicts that Laura will offer Sarah ___________ slice(s) and Sarah ___________ accept the offer.
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