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The number of cars arriving at Joe Kelly's oil change and tune-up place during the last 200 hours of operation is observed to be the following.
Number of cars arriving Frequency
4 10
5 30
6 70
7 50
8 40
a. Determine the probability distribution, and the cumulative probability distribution of car arrivals.
b. Simulate 20 hours of car arrivals at Joe Kelly's oil change and tune-up place.
c. For the simulation in (b), what is the average number of cars arriving per hour?
Walleye is a common game fish. Adult walleye have a length with a mean of 44 cm and a standard deviation of 4 cm and the distribution of lengths is approximately Normal. What fraction of walleye are between 40 and 48 cm in length?
Genzero Pharmaceuticals developed the following regression model based on time series data from the past 33 quarters, for one of its non-prescription cold remedies:
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Determine a 95 percent confidence interval for the population mean.
Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.
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If sensitivity and specificity remain constant, determine the relationship of prevalence to predictive value positive and predictive value negative?
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Identify the indicated values or interpret the given display. In a survey of 703 randomly selected workers,
if 100 tires are randomly selected for shipment to an outlet, what is the probability that they are all good? should this outlet plan to deal with defective tires returned by consumers?
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