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Suppose there are two bidders. Calculate the expected revenue from a first-price auction as a function of the reserve price r for the following distributions defined for x ∈ [0, 1]:
(a) F (x) = x
(b) F (x) = x2
(c) F (x) = √x.
A company's net sales is $ million from 1993-2002, determine the least squares equation and based on this info, what are the estimated sales for 2005?
State the main points of the Central Limit Theorem for a mean. B. Why is population shape of concern when estimating a mean? What does sample size have to do with it?
in late 2007 it was reported that 79 of u.s. adults owned a cell phone data extracted from e.c. baig tips help navigate
can you reject the auto maker's claim that the mean gas mileage of its sports utility vehicle is 20 miles per gallon? Assume the population is normally distributed.
an electronic scanner is successful in detecting flaws in a material in 80 of the cases. three material specimens
Use the above information to calculate the number of watches (units) and the sales dollars we need in order for our flea market business to break even for the day.
question one-sample tests of hypothesisstate the null and alternative hypothesisstate the decision
Why use the Wilcoxon T test. What is the hypothesis statements you used? Consider do we prefer working with dependent samples or independent samples? Explain
For the sample of men, performance on the simulator task declined by an average of 2.9 points with s = 4.1. Is this a statistically significant change? Use a two-tailed test with = .05.
calculate a 99 confidence interval for the true mean of a bearings diameter when a sample of 16 of the bearings have a
U.S. News & World Report publishes the average starting salary and the average GMAT score for MBA graduates at each of the top 80 ranked schools in the country.
Suppose the probability that a federal income tax return conatins an arithemetic error is 0.2. If 10 federal income tax returns are selected at random,
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