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The Housing Department of the Government wants to analyze the housing tenure decisions of the Spaniards to guide its future policies. They conduct a survey and ?nd that among the interviewed individuals either they rent a ?at, or buy a ?at, or buy a house. The Department asks you to estimate a model that could ?t this situation.
a) Do you think that a multinomial logit is a suitable model for this problem? Explain why.b) Suggest some alternative(s) to the multinomial logit and explain why you select them.
An elevator has a uniform distribution ranging from 0 to 4 minutes. Find the mean and standard deviation of x, the time a customer on the second floor waits for an elevator.
A locksmith is preparing an electronic key code of 3 integers selected from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} without replacement. Calculate the probability that at least one of integer in the code is 5.
This indicates that about 80 out of 100 similarily constructed intervals would include the population porportion. (true or false)
Assume a random sample of 50 architects and engineers is selected. How likely is it that the random sample contain five or fewer women in these positions.
Find the area between the graphs of the functions y1 (x) = x ln x and y2 (x) = -4 exp(3ln x) in the interval between the points x1 = 1 and x2 = e.
Sample of size 26 was taken from normal population with standard deviation 1.697. Approximate the probability that standard deviation of sample is greater than 1.23.
Briefly describe how the standard deviation influences the outcome of the hypothesis test. How does standard deviation influence measures of effect size?
List the steps involved in hypothesis testing using: a) the traditional/classical method; b) the probability-value method. Provide an example of each.
An investigator wants to estimate caffeine consumption in high school students. How many students would be required to ensure that 95% confidence interval estimate for the mean caffeine intake (measured in mg) is within 15 units of the true mean? ..
Determine the probability in big class that both sections are covered? Only one section? Neither section? Determine the expected number of sections covered?
Half of the 1000 emloyees were involved in some type of exercise. What is the probability that an employee will have a cold next year?
Carry out a hypothesis test to see if our belief can be supported. State the null hypothesis and the alternative hypothesis that we would use for this test.
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