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Let X 1 , X 2 , ... , X n be a random sample from the distribution with probability density function f(x; Θ) = [Θ / 2sqrt(x)] * e^[-Θsqrt(x)], x > 0 , Θ > 0
a) Find the sufficient statistic Y = u ( X 1 , X 2 , ... , X n ) for Θ.b) What is the probability distribution of W = sqrt(X)?c) What is the probability distribution of sigma notation from i = 1 to n (sqrt(Xi))?
According to an exit poll taken by CNN during the 2008 Democratic Primary in Connecticut, 552 registered voters voted for Hilary Clinton and 598 for Barack Obama. Would you have been willing to predict Obama as the winner?
Describe the "third variable problem" as it relates to correlation and provide an example of how you might see this played out in your own field.
Use descriptive statistics to explain how parental involvement and interests in child's education can impact on educational attainment measured in terms of their numeracy (v24_7), literacy (v28_7) and creativity skills (v25_7 and v26_7)
How can you answer the dual simplex question with maximization objective function and also explain difference between m tecnique and two phase method?
Find the regression equation to predict the cognitive series score from the 7 minute screen score using SPSS. Be sure to write out the equation by hand using the variable names
Two different simple random samples are drawn from two different populations. The first sample consists of 20 people, with 10 having a common attribute.
Does this sample give sufficient evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of general population? Use two-tailed test with α = .01.
How close is the calculated value to your experimental value?
Given the following data, calculate the EMV for each investment alternative. Which is best based on the EMVs you calculated?
We wish to determine whether the homicide rate is different in different parts of the country and, if it is different, what is the pattern. We have data on 36 states - 9 each in the four regions Northeast, Midwest, South and West.
If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates?
Using one mean Z test to test whether or not to support the claim - Is there evidence that the average hours is below 6? Describe.
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