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Question: Class size and class level. A university classifies its classes as either "small" (fewer than 40 students) or "large." A dean sees that 62% of Department A's classes are small, while Department B has only 40% small classes. She wonders if she should cut Department A's budget and insist on larger classes. Department A responds to the dean by pointing out that classes for thirdand fourth-year students tend to be smaller than classes for first- and second-year students. The following three-way table gives the counts of classes by department, size, and student audience. Write a short report for the dean that summarizes these data. Start by computing the percents of small classes in the two departments and include other numerical and graphical comparisons as needed. Here are the numbers of classes to be analyzed:
A cable manufacturer has historically averaged 2.6 flaws per 1000 meters length of wire production.
Critically discuss how someone may use measures of central tendency, variation, or position in their home, school, or workplace.
To meet demand, Paperco must produce at least 250 tons of recycled newsprint pulp, at least 300 tons of recycled uncoated paper pulp, and at least 150 tons of recycled coated paper pulp. Formulate a balanced transportation problem that can be used..
Based on the data and the assumption of a bell-shaped distribution, what score should be used for the two cutoffs?
A person's white blood cell (WBC) count W (measured in thousands of cells per microliter of blood) and body temperature T (in degrees Celsius) can be modeled as bivariate Gaussian random variables such that W is Gaussian (7, 2) and T is Gaussian (..
For thefts involving more than $1,000, there is an inverse relationship between the value of the goods stolen and the length of the prison sentence given to the thief.
For a randomly selected sample of 800 U.S. households, use the normal approximation to the binomial distribution in determining the probability that at least 420 of these households have a camcorder.
The restaurant's manager says the discounts vary with an average of $10.00 and a standard deviation of $15. How much more can you expect to save at the Wise Fool?with what standard deviation?
it is desired to test whether the number of gamma rays emitted per second by a certain radioactive substance is a
A sample of 50 days showed that a fast food restaurant served an average of 182 customers during lunchtime (11:00 A.M. to 2:00 P.M). The standard deviation of the population is 8. Find the 96.24% confidence interval. A) What is the point estimate ..
A set of n random variables X1, X2, X3,....,Xn, are independent and each uniformly distributed- Find the probability density function. - find the conditional PDF.-
It has been reported that 80% of taxpayers who are audited by the Internal Revenue Service end up paying more money in taxes. Assume that auditors are randomly assigned to cases, and that one of the ways the IRS oversees its auditors is to monitor..
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