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Explain the difference between intramodal and intermodal competition in the rail- road industry. Which form of competition is most beneficial to shippers? Why?
heart failures are due to either natural occurrences 82 or outside factors 18. outside factors are related to induced
A restaurant claims that the waiting time of customers for service is normally distributed with a mean of 3 minutes and a standard deviation of 1 minute.
a hospital administrator wants to measure average time per hip replacement procedure performed in the institutions
organizations interested in making sure that accused persons have a trial of their peers often compare the distribution
zingos grocery store claims that customers spend an average of five minutes waiting for service at the stores deli
1. If the sampled population has a mean 48 and standard deviation 18, then the mean and the standard deviation for the sampling distribution of X (X-bar) for n=9 are:
Estimate the mean study time for the population of all students. What is the probability that the sample mean exceeds the population mean by more than 2 hours?
Let /(x) = 1/r, 1 x oo, zero elsewhere, be the p.d.f. of a random variable X. Consider a random sample of size 72 from the distribution having this p.d.f. Compute approximately the probability that more than 50 of the observa..
plot the following set on a scatter plot. estimate the correlation and them compute it. next identify any outliners in
Smaller the p-value in test of hypothesis, the more important the results are.
In an experiment in which a die was rolled 188 times it was counted up how many times each face came up. The results are as follows:
Norm Dickins the town pharmacist is interested in obtaining a loan to expand his business. He will get a better interest rate if he can reasonably demonstrate that his near-term monthly revenues will be between $10,000 and $15,000.
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