Consider the model y=1+e where for X = {r1, ... , IN}, and for all i, E (e,|X) = c # Which of the following is correct? O The OLS estimator for 7 is unbiased. The OLS estimator for 7 is =

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Q: 1. A T interval for the difference of 2 population means was obtained on the TI, as shown below.…

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A: Given that,  e1,e2,...,en~N(0,σ2)Where, σ2>0Yi=α+ei    ;    i=1:n

Q: x+ µ| x-H

A: Which one is the correct choice

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Q: Given a point estimator s- I)] of oʻ, what is Bias(s-)? Note: Bias(ô) = E(@) – 0 where statistic ô0…

A: Solution: The point estimate of σ2  s'2=1n[∑i=1n(Xi-x)2]

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Q: 4. Suppose that Đ, and Əz are unbiased estimators of the parameters 0. We know that V(é,) = 20 and…

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Q: With Ha : H + 122 1.578. Find the p- you obtain a test statistic of z = value accurate to 4 decimal…

A: P(Z < -1.578 ) = 0.0573   [using Excel function NORM.S.DIST(-1.578) or Normal table ]

Q: E (x. - x Y Show that is a consistent estimator for o is N (µ, o²).

A: ANSWER: For the given data,

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Q: Given the following information: restricted regression: R^2=0.24, n=385, k=6 unrestricted…

A: Given :  restricted regression: R^2=0.24, n=385, k=6 unrestricted regression: R^2=0.31, n=385, k=15

Q: 40. A population with a mean of u=9 has EX = 72. How many scores are in the population? (SHOW

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Q: (a) Show that X² is not an unbiased estimator for the area of the square plot p². [Hint: for any rv…

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Q: Q2. Let X, X2, ..., X, be a random sample from a population having mean µ and variance o. Consider…

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A: Given Data: x¯m=0.53            sm=0.81              nm=40x¯f=0.08              sf=0.75…

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Q: Q1, The following data was taken for a class weight, find the following 1- The Average 2- The std.…

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Q: . 19. For two groups of observations, the röllowing results are available : E(X - 5) = 3 Group II…

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A: Given: s'2=1n∑i=1nXi- x¯2 s'2 is the estimator of σ2

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Q: 5.1.c Find the MOM estimator for o? Are the MOM estimator for o? and the MLE for o² the same?

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Q: Consider the following data relating hours spent studying (X) and average grade on course quizzes…

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Q: **28. Consider the following: rxy = .85, Y = 40, Su = 6. Y' = 36. What is the range within which one…

A: c is the very much correct option that is 30-42

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Q: Example3. Calculate Pearson's coefficient of skewness for the following data: X: 2 3. 4 7 f:1 3 8. 7…

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Q: Consider the following data relating hours spent studying (X) and average grade on course quizzes…

A: Given Information: The data represents hours spent studying and the average grade on course quizzes.…

Q: Q) Fit the curve of the form y = ab* to the following data, then find the standard deviation. 3 4 5…

A: x y y2 3 1.8 3.24 4 2.5 6.25 5 3.6 12.96 6 4.7 22.09 7 6.6 43.56 ∑y =19.2∑y2=88.1mean…