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A faculty member can be either an assistant professor, an associate professor, or a full professor. In terms of departmental standing, a full professor is above an associate professor, who is in turn, above assistant professor. At the end of each academic year, 13% of assistant professors become associate professors and 18% leave the department; 21% of associate professors become full professors, and 17% leave the department; and 9% of full professors leave the department.
A company makes molded plastic toys. They study the plastic injection process into the molds. A common cause of variation and What are the control limits for an chart
Suppose that you're the Quality Manager for the Emerson D. Meritz Machine Tool Company. Your model IE566 grinding machine is afflicted by three types of defects classified as major (type A), serious (type B) and minor (type C).
The technician has just made an attempt to calibrate the machine. a. What is the probability that the machine is in adjustment?
N=120, population standard deviation is (known) 5, alpha =.05, standard error of the mean (sigma of xbar)= .46, h0 is rejected if xbar
Four properties are randomly selected from each neighborhood and the ratios recorded for each as follows:
Based on these results, the proportion of the variation in 1993 winnings that is explained by the average number of putts per round and driving distance
Find the 90%, 95% and 99% confidence intervals for the proportion of all voters who favor the issue. How many more voters should we include in the sample if we need to reduce the margin of error by half?
Assume that demand for the upcoming weekend is normally distributed with a standard deviation of 30.
If the city manager knows the average salary nationally is $38,300, which test of significance should be used? Why?
What is the probability that a soldier is a female?
Recent crime reports indicate that 5.2 motor vehicle thefts occur each minute in the United States. Assume that the distribution of thefts per minute can be approximated by the Poisson probability distribution.
You are considering adding a new food product to your store for resale. Explain how many units of the new product should be purchased for resale.
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