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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 large tank of fish from a hatchery is being delivered to a lake. The hatchery claims that the mean length of fish in the tank is 15 inches, and the standard deviation is 2 inches. A random sample of 36 fish is taken from the tank.
At alpha = 0.05, is there enough evidence to conclude that proportions vary from those in the study?
For a regional survey of suburban households to obtain data on television viewing habits, a statistical sample of suburban areas is first selected. Within the chosen areas, statistical samples of whole blocks are selected; and within the selected..
Find the mean and standard deviation of X, the number of students in class, who will develop influenza.
Explain these results to a person who understands the t test for a single sample but knows nothing about the t test for independent means.
Suppose you are working with a data set that is normally distributed, with a mean of 300 and a standard deviation of 44. Determine the value of x from the following information.
Determine the probability that she lives in an all electric home?
University of Waterloo are much susceptible to hypnosis which University of Tennessee undergraduates. Set up H0 and Ha for the test.
Can we conclude that mean time for game is less than 3.50 hours? Use.05 significance level.
How many of these new cardholders would you expect to default? What is the standard deviation?
Use this information to construct a probability table, and then calculate each of the following probabilities: P(foreign car)
Using this information, calculate Beta risk (probability of Type II error) if the true population mean really is 77.
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