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Customers arrive at a bank according to a Poisson process with an average rate of 6 customers per hour. Each arriving customer is either a man with probability p or a woman with probability 1p. It was found that in the first 2 hours the average number of men who arrived at the bank was 8. What is the average number of women who arrived over the same period?
you get to choose between two envelopes each of which contains a check for some positive amount of money. unlike in the
Data were collected for a sample of 64 customers. Assume a population standard deviation of $6. At 95% confidence, what is the margin of error?
You take a sample of 22 from a population of test scores, and the mean of yoursample is 60. (a) You know the standard deviation of the population is 10.What is the 99% confidence interval on the population mean.
How many of those meals should he plan on serving in order to be pretty sure of having enough steaks on hand to meet customer demand? Justify your answer.
What is the power of a hypothesis test? Why is it important?- How is the power of a hypothesis test related to the significance level σ?
the probability that a motor vehicle entering the luray caverns has canadian license plates is 0.35 the probability
A chemical engineer had three different formulas for a gasoline additive that she thought would significantly change automobile gas mileage.
let a b and c be independent random variables uniformly distributed over 04 03 and 06 respectively. what is the
Many have discussed the Civil War and its impact on American history. What was your understanding of the Civil War prior to reading.
Let Y(sub-1) be the sales during month t (in thousands of dollars) for a photograph studio, and let P(sub-t) be the price charged for the portraits during month t. The data are included in the file provided below.Use regression to fit the followin..
suppose the incubation period for land turtle eggs is normally distributed with a mean of sixty-seven days and standard
What is your initial perception of this information? What are other ways, beyond looking at the p-value alone, you could use to try to interpret what this outcome of r(2398) = -.21 tells us about the relationship between length of time taking drug..
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