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The data set education.dta contains data on the years of education of a random sample of 718 Americans, as well as the same information for both of their parents. It is likely that parents' achievements have some predictive power for their children's outcomes, as a result of both a hereditary component of intelligence and the possibility that higher educated parents stimulate their children more to do well at school. Thus, we consider the model educi = 1 + 2meduci + 3feduci +ui.
Question 1: We will ignore any heteroskedasticity and autocorrelation problems in the remainder of this question. However, discuss whether it is likely that these problems are present in our model.
Question 2: Beta2 and beta3 are allowed to be different. Now, what would the restriction beta2 + beta3 = 1 mean, in economic terms?
an instructor believes that 20 or less of the students who finish a statistics course get an a grade. a sample of 90
a. the length of time it takes for gandolfs fireworks to explode after they are launched is presumed to be uniformly
a) What is the probability that none of these vehicles requires warranty service? Use the Binomial equation for P(X=0).
If the sample standard deviation is s = 10, are the data sufficient to conclude that the treatment has significant effect using a two-tailed test with α = .05?
In what order should the cars be processed through the facility that is the most efficient overall - how long from start to finish will it take to complete the processing the five cars?
a researcher has reason to believe that for an experiment with 50 points a 95 prediction interval would be of width 8.
A random sample of 20 Clarinex-D users is obtained, and the number of patients who experienced insomnia is recorded. Find the probability that exactly 3 experienced insomnia as a side effect.
a researcher thinks that people who drive red cars drive faster than people who drive silver cars. he recorded the
find the lower amp upper limits of a confidence interval if the mean is eighteen percent and the margin of error is
The annual cost carrying a pound of cheese in a refrigerated storage area is $12. Determine the optimal order size and the minimum total annual inventory cost.
consider a random sample from a poission ditribution xipoiu.a show that yne-xnbarconverges stochastically to px0e-u.b
weekly demand at a grocert store for a brand of cereal is normally distributed according to x n 800 boxes 752 boxesa.
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