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Emmons Corporation has a 0.2 probability of a return of 0.54, a 0.3 probability of a rate of return of 0.05, and the remaining probability of a 0.1 rate of return. What is the variance in the expected rate of return of Emmons Corporation?
The direction of the pigeons" loft is 149 degrees from their release point. Do the pigeons, on average, fly directly to the loft?
The standard deviation of the sample was 6 people. Develop a 95 percent confidence interval for the population mean.
A study is to be conducted on the proportion of U.S. citizens who believe the minimum wage should be raised. What is the minimum number of people that should be included in the study if we want to estimate the true proportion with a margin of erro..
Which approach is most preferred and why? Optimistic, conservative, or minimax regret. Also, is establishing the most appropriate approach before analysising the problem important for the decision maker?
What is pooled variance and why is it important? Explain what interval data is and give an example: Write the formula for a problem that has 2 sample populations greater than 30 and the standard deviations are known and equal:
In the graphical method, how do you know when a problem is infeasible, unbounded, or when it has multiple optimal solutions? Give a real-world example of when you could have an infeasible problem.
suppose that in bags of christmas mampms half of the mampms are supposed to be red and the other half green. in a bag
A reasearcher is running a chi-sq test. She would like to test her hypothesis at the alpha=.05 and finds that her research situation has 5 degrees of freedom. What is value for the chi-sq critical?
The fraternities and sororities at St. Algebra College have been plagued by declining membership over the past several years and want to know
Consider the following data from a simple random sample of size n = 2 from a population of size N = 8, in which y is the variable of interest and x is an auxiliary variable: y1 = 50, x1 = 10; y2 = 22, x2 = 2.
According to USA Today, 65% of Americans are overweight or obese. If five Americans are chosen at random, what is the probability that at least one of them is overweight or obese?
Explain which parts of the sample space are being double counted on both sides of this equation and which parts are being counted once.
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