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A purchaser of electronic components wants to test the hypothesis that they last less than 100 h. To do this she takes a random sample of 16 such components and ?nds that, on average, they last 96 h, with a standard deviation of 8 h. If the purchaser knows that the lifetime of the components is normally distributed, should she accept the hypothesis that they last less than 100 h at ( a ) A 95% level of con?dence? ( b ) A 99% level of con?dence?
In the past, 20% of applicants for admission into a master's program had GRE scores above 650. Of the 88 students applying to be admitted into the program in 1981, 22 had GRE scores above 650. Do the 1981 applicants have greater GRE scores than previous applicants at the 5% level of signi?cance?
If you invest $499,000 and you have an annual expense of $45,000 in year one which increases by $9,900 each year there after. Annual revenues are $199,000 each year. What is the Present Worth of the operation, and the Annual Equivalen
Motorola and other backers sank more than $5 billion in the 1990s into the development of Iridium, satellite communications systems to connect wireless telephone users anywhere on earth. Although the number of subscriber's signing up for the servi..
To finance the investment, your organization or business would have to take out a loan. Suppose the interest rate on the loan is 12%, the dollar amount of the investment is $100,000 and the projected annual return from the project is 14%,
Respond to the following question: Howard Becker states, "...social groups create deviance by making the rules whose infraction constitutes deviance, and by applying those rules to particular people and labeling them as outsiders. From this point ..
an alumnus of West Virginia University wishes to start an endowment that will provide scholarship money of $40,000 per year beginning in year 5 and continuing indefinitely. The donor plans to give money now and for each of the next 2 years.
compute the r and y in which the two markets are clearing.
In each case, draw a budget line that shows her available choices, and indicate her best choice by adding indifference curves. Assume that Jane only cares about the number of peanuts, and not about the size of the bag.
The opportunity cost would be $200 in forgone wages for the ten hours he worked planting $100 in seeds, right The accountant would measure revenue-explicit cost= profit The economist would measure revenue- explicit and implicit cost=profit
Suppose that the household decides to consume 26,000 in period 1 and 32,000 in period 2. Now suppose that the interest rate falls 50 percent, and the household decides not to borrow or lend at all. Is the household better off or worse off with the..
Advice for an Unprofitable Firm. You've been hired as an economic consultant by a price-taking firm that produces baseball caps. The firm already has a factory, so it is operating in the short run.
The Zenvox Television Company faces a demand function for its products that can be expressed as Q = 4,000 - P + 0.5I, where Q is the number of televisions, P is the price per television and I is the average monthly income. Average monthly income i..
Write paragraphs on needs and wants of ancient communities and how they exchanged their goods:Your answer must include the ff aspects
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