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The number of automobiles that arrive at a certain intersection per minute has a Poisson distribution with a mean of 5. Interest centers around the time that elapses before 10 automobiles appear at the intersection.
a) What is the probability that more than 10 automobiles appear at the intersection during any given minute of time?
b) What is the probability that more than 2 minutes are required before 10 cars arrive?
Determine the sample size needed in order to be 99% confident that the sample proportion of the current customer accounts is within .03 of the true proportion of all current accounts for this company.
Ordinary regression line where the spread is assumed to be constant in all parts of the line. In practice, plot yi vs. xi from the sample and see what type of relation exists. When can a ratio estimator be used?
At a national seashore, the number of swimmers per day who require lifeguard assistance averages 4.1, on any day when 7 or more swimmers are assisted, the lifeguards receive a $20 bonus for extra effort.
Can you tell me what are the advantages and limitations of applying nonparametric tests in solving business problems?
Compute the kappa statistic and its standard error regarding reproducibility of the diagnosis of dyspnea in the clinic.
The so-called "Gambler's Fallacy" makes the mistake of not recognizing:
A manager of a small store wanted to discourage shoplifters by putting signs around the store saying "Shoplifting is a crime!" However, he wanted to make sure this would not result in customers buying less. To test this, he displayed the signs every ..
Make a conclusion about the hypotheses bases on your result( not why, should be it means) Required minimum-1 page
Identify all the averages (mean, median, or mode) that can be used to summarize the outstanding balance on each account.
Compare the three designs on speed of completion, the builder randomly selects 10 homes that he built in the past based on each of the three designs.
Of the 900 employees, 590 had college degrees, 120 were single, and 80 were single college graduates. Find the probability that an employee of the company is married and has a college degree.
If we wish to be 95% certain of avoiding a Type I error, use these data to examine differences in the average distance traveled to the two clinics.
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