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The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.54 liters. A sample of 10 adults after the campaign shows the following consumption in liters: 1.35 1.68 1.76 2.00 1.84 1.84 1.50 1.82 1.86 1.60 At the 0.05 significance level, can we conclude that water consumption has increased? Calculate and interpret the p-value.
(b) State the decision rule for .05 significance level.
(c) Compute the value of the test statistic.
Suppose that the current market price of VCRs is $300, that average consumer disposable income is $30,000, and that the price of DVD players (a substitute for VCRs) is $500. Under these conditions annual U.S. demand for VCRs is 5 million per year.
What are the marginal abatement cost functions for each of the two areas? Calculate the loss in the two areas due to over-control (for the rural area) and under-control (for the urban area).
Say that investment increases by 100 for each interest rate drop of 1 percent. Say also that the expenditures multiplier is 3. If the money multiplier is 5, and each 5-unit change in the money supply changes the interest rate by 1 percent, what op..
anderson county has 35 older-model school buses that will be salvaged for $5,000 each. these buses cost $144,000 per year for fuel and maintenance. now the county will purchase 35 new school buses for $ 40,000 each.
Solve Tracy's problem of how often to go to the ATM when nominal interest rate on her bank account is 10%, she spends $30 each day, it cost her $0.50 each time she uses the atm, and she thinks that there is a 15% chance.
howard bowen is a large-scale cotton farmer. the land and machinery he owns has a current market vlaue of $4 million. bowen owes his local bank $3 million. last year bowen sold $ 5 million worth of cotton. his variable operating costs were $4.5 mi..
Suppose that as an owner of a federally insured S&L in the 1980s the price of real estate falls, and most of your loans go into default. In fact, so many loans go into default that the net worth of the S&L is a negative($5 million). Federal regula..
Wilpen Corporation, a price-setting form, manufactures nearly 80% of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the linear specifications:
Paul consumes two goods: potatoes and leisure, N. the number of potatoes Paul consumes does not vary, but their tastiness, T, does. For each extra unit of tastiness, he must spend Pt hours in the kitchen. Thus, Paul's time constraint is N+PtT=24. ..
A permanent scholarship fund is started through a donation of $173,478. If five scholarships of $9,409 each are awarded at the end of each year beginning 10 years from now, the rate of return for the invested money is equal
In 1970 and 1980, the nominal price of motor fuel rose much more rapidly than the general price level, pushing up the relative price of motor fuel. As we would expect, the quantity sold decreased. In 1981 and 1982, the relative price leveled off a..
a man wants to decide whether to invest $1000 in a friends venture. he will do so if he thinks he can get his money back in one year. he believes the probabilities of the various outcomes at the end of one year.
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