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Let (X,Y) be jointly distributed random variables with joint density f(x,y)=1/9 for 0<=x<=3 and 0<=y<=x^2
Determine f(X=x given Y=2)
what is the probability that the mean of a random sample will be equal to or greater than the 97.5 percentile of its
1. the complementary slackness principle states that either there is zero slack on a constraint or the reduced cost is
47% of students have children under 17 living at home with them. Find the probability that a random sample of 800 students will return more than 50% students with children under 17 living at home with them.
Assuming that the population variances are equal for male and female Grade Point Averages (GPAs), use the following sample data to test whether the averages are different at the 0.05 level of significance.
researcher seth b. young measured the walking speed of travelers in san francisco international airport and cleveland
A random sample of n=31 households is asked the number of TV sets in the household. The responses are-What is the mean number of TVs?
graduates from a graphic arts course at a community college have a mean starting salary of 32000 with a standard
You work at a facility and want to perform an assessment of your safety culture – this would involve multiple topics of questions expecting answers like agree, tend to agree, not sure, tend to disagree, disagree.
The Financial Advisor exam has a mean of 500 and a standard deviation of 20. If the bank chooses to hire either Steve or Mark based solely on their exam performance, who is the bank more likely to hire? Show evidence for your answer.
Use the fact that the confidence interval for the mean is in the for x- E to x+ E to compute the sample mean and the mazimal margin of error E.
For each of the following three populations, indicate what the sampling distribution for samples of 25 would consist of: Travel expense vouchers for a university in an academic year.
Suppose you were a manager of a business. You can only pick on method to solve the LP problems, which method would you choose and Why?
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