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1.) You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get?
2.) You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get?
Determine the probability distribution's missing value. The probability that a tutor will see 0, 1, 2, 3, 4, 5, 6, 7 or 8 students on a given day. The owner of a professional basketball team claims that the mean attendance at games is over 30,000 and..
students in an introductory statistics class were asked to report the age of their mothers when they were born.
a significant interaction effect indicates thata. the influence of one factor is not the same for each level of the
Show that, if X has a U(0,1) distribution, its mean is 1/2 and its variance is 1/12.
Pierre has a utility function for total asset position of u(x)=ln(x), His assets currently consist of $50,000 in cash and a rare violin he inherited from a rich uncle which is valued at $100,000.
Suppose that the number of cars, X, that pass through a car wash between 4:00pm and 5:00pm on any sunny Friday has the following probability distribution:
Policyholders of a certain insurance company have accidents at times distributed according to a Poisson process with rate λ. The amount of time from when the accident occurs until a claim is made has distribution G.
What is the probability of Picking a second red ball from the urn in Prob. 3.4 when a red ball was already obtained on the ?rst pick and not replaced?
suppose that the joint density for xy is uniform over the disc centered at the origin with radius 1.a calculate the
A researcher is conducting proportionate stratified random sampling with a sample size of 250. Approximately how many people should be sampled from each stratum?
What proportion of the first 70 digits in the table are 0s (there are 40 digits in line 101 followed by the first 30 in line 102)?
Suppose that this estimate was based on a random sample of 600 households (i.e., n = 600 and p = .64). Construct a 95% confidence interval for π, the true proportion of all households that use coupons.
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