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A coffee shop estimates that the mean number of cups of coffee sold per day to surrounding businesses is 2.0 per employee with a standard deviation of .6 cups of coffee. a new business with 125 employees is moving into the area. what is the probability that the new employees will consume more than 240 cups of coffee per day.
Using symbols state hypotheses (H 0 and H 1 ) for two-tailed test. Sketch suitable distribution and locate critical region for a = 0.05.
Let x be amount of May rainfall in local area, and suppose that x is uniformly distributed over interval three to six inches. Write down the formula for probability curve of x.
An airline owns an aging fleet of Boeing 737 jet airplanes. It is considering a major purchase of up to 17 new Boeing model 757 and 767 jets.
When estimating a population mean with a confidence interval estimate, then E is:
What is the probability that in January of 2003 a randomly selected worker spent fewer than 50 hours per month logged on to the Internet?
In the order of operations Pemdas requires that exponentation takes precedence over multiplication, so we cannot multiply 4*2 without first evaluating 2^x, but we could divide both sides by 4.
Find the probability that when 200 reservations are accepted, there are more passengers showing up than there are seats available. Is the probability of overbooking small enough so that it does no happen very often.
You are a researcher who is interested in the effect of child care on the attachment which develops between an infant and a caregiver.
If the mailing list can be considered a random sample of the population, what is the chance that at least 1245 Macintosh users will receive the flyer?
If the server has 40 customers in one shift, what is the probability that her total tips are less than $250? (Assume that these 40 customers represent a simple random sample).
A researcher studies the relationship between political attitudes and income. He/she finds that those with higher income are more conservative.
The assembly time for a product is uniformly distributed between 6 to 10 minutes.
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