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Suppose the supply and demand for a certain textbook are given by ?supply: p=15q2, demand p=-15q2+30, where p is the price and q is the quantity. Find the demand quantity and the supply quantity at a price of $25
The number of books that are demanded at a price of $25 is, and the number of books supplied at a price of $25 is
?(Round to the nearest whole number as? needed.)
Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune tellers. Use a 0.09 margin of error, use a confidence level of 90%, and use results from a prior poll suggesting that 14% of adults have consulted fort..
A company that manufactures precision special-alloy steel shafts claims that the variance in the diameters of shafts is no more than 0.0003. A random sample of 10 shafts gave a sample variance of 0.00027. At the 5% level of signi?cance, test wheth..
According to an article in USA Today, 60% of 7- to 12-year-olds who use the Internet do their schoolwork on line.9 If 8 kids within this age group.
Manufacturing and Product Development A manufacturer claims the weight of a package of their unsalted pretzels is (at least) 15.5 ounces.
Is there any evidence to suggest that the population mean sagittal diameter of women's biceps tendons is different from that of men's biceps tendons?
1. On R2 let d((x, y), (u, v)) := ((x - u)2 + (y - v)2)1/2 (usual metric), e(x, y) := |x - u|+ |y - v|. Show that e is a metric and metrizes the same topology as d.
an experiment investigating the effect of exercise on happiness randomly assigns participants to one of four groups
Bank tellers. I am the only bank teller on duty at my local bank. I need to run out for 10 minutes, but I don t want to miss any customers.
Determine the probability that number of requests in 10 hour work day is between 68 and 80 inclusive? Give your answer to four decimal places.
the rate of return for na investment can be described by a normal distribution with mean 47 and standard deviation 3.
In this group four were African American, 6 were hispanic, and one was Asian. Was this a good sample on which to norm this test? why or why not? What are your suggestions?
On time. A Department of Transportation report about air travel found that, nationwide, 76% of all flights are on time.
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