8. Which one of the following is NOT true: Options - We do not need to know the functional form of heteroskedasticity to perform White's test for heteroskedasticity. Lagrange Multiplier test for heteroskedasticity requires us to specify a functional form for heteroskedasticity. Heteroskedasticity makes OLS estimator biased. Jarque-Bera test does not test for heteroskedasticity
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Q8. Which one of the following is NOT true:
Options -
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- Eastman Publishing Company is considering publishing an electronic textbook about spreadsheet applications for business. The fixed cost of manuscript preparation, textbook design, and web site construction is estimated to be $172,000. Variable processing costs are estimated to be $5 per book. The publisher plans to sell single-user access to the book for $42. Through a series of web-based experiments, Eastman has created a predictive model that estimates demand as a function of price. The predictive model is demand = 4,000 − 6p, where p is the price of the e-book. (a) Construct an appropriate spreadsheet model for calculating the profit/loss at a given single-user access price taking into account the above demand function. What is the profit estimated by your model for the given costs and single user access price (in dollars). $ (b) Use Goal Seek to calculate the price (in dollars) that results in breakeven. (Round your answer to the nearest cent.) $ (c) Use a data table that varies…Which of the following statements is true? a) None of the other possible answers are true. b) Under the Classical Linear Model assumptions, the OLS estimator has the highest variance among unbiased estimators. c) Taking the natural log of a non-normal distribution often yields a distribution that is closer to normal. d) The Central Limit Theorem (CLT) assumes that the dependent variable is unaffected by unobserved factors. e) The mean of a non-normal distribution is 0 and the variance is σ2.Consider the following Model (notation is standard):C=c(y-τ) I=i(r) y = C+I+G Md/P = L(y, r) Md= Ms=My = f(n) n = h(W/P) f´(n) = W/P Calculate the effects of a change in τ on C, I, r, y and P.
- A local college is deciding whether to conduct a campus beautification initiative that would involve various projects, such as planting trees and remodeling buildings, to make the campus more aesthetically pleasing. For the students of the college, the visual appearance of the campus is and . Thus, the visual appearance would be classified as a public good. Suppose the college administrators estimate that the beautification initiative will cost $66,120. To decide whether the initiative should be undertaken, administrators conduct a survey of the college's 1,820 students, asking each of them their willingness to pay for the beautification project. The average willingness to pay, as revealed by the survey, is $28. The benefit of the beautification initiative, as suggested by the survey, is . Because the estimated benefit is than the cost, the college administrators undertake the beautification initiative. The calculation of the benefit of the beautification…Consider Scenario A from the previous question. State whether you made a Type I error, a Type II error, or the correct conclusion. Children in your community have on average less than 5.2 books at home, and you reject the hypothesis that they have greater than or equal to 5.2 books. Children in your community have on average less than 5.2 books at home, and you fail to reject the hypothesis that they have greater than or equal to 5.2 books. Children in your community have on average greater than or equal to 5.2 books at home, and you reject the hypothesis that they have greater than or equal to 5.2 books.You and your research partner want to use Instrumental Variable analysis to write an econometrics paper and find causal estimates. Your partner argues that because the residuals and the instrument are uncorrelated, the exogeneity requirement is satisfied. What do you tell your research partner: a) You agree, the exogeneity requirement is satisfied by construction b) You agree, the exogeneity requirement is satisfied by their demonstration c) You disagree, you would need the results of the White Test to make this conclusion d) You disagree, the exogeneity requirement cannot be tested as we do not observe the error terms e) You cannot make any conclusions with the current information
- Consider the following TSLS model, where Ability is an endogenous independent variable, while Educand Age are exogenous.Stage 1 : Ability = 0 + 1 Educ + 2 Age + 3 Expr + 4 ParEduc + 5 KWW + VStage 2 : log(Wage) = 0 + 1 Educ + 2 Age + 2 Ability + UIf we use the Sargan test, the rst-stage F test and the Hausman test together to decide whether aTSLS or an OLS would be more appropriate, ll in the following blanks: at the 5% signicance level, the critical value for the Sargan test is blank, and the critical value forthe Hausman test is blank; if we blank (reject or fail to reject) the Sargan test, blank (reject or fail to reject) the rst-stageF test, and blank (reject or fail to reject) the Hausman test, then it is implied that we shall use theTSLS instead of the OLS estimation.Determine the share (proportion) of person trips by each of two modes (Private auto and mass transit) using the multinomial logit model and given and following informationCan you please answer Q4?
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