11. The following are all least squares assumptions with the exception of: O a. They are independently and identically distributed. O b. The explanatory variable in regression model is normally distributed. O c. Large outliers are unlikely. O d. The conditional distribution of given has a mean of zero.
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- Consider the following decomposition of the error term: v i t = a i + u i t The first part of this error term (ai) caputres ______and the second part (uit) caputres______. time constant unobserved factors, time varying unobserved factors time varying unobserved factors, time constant unobserved factors homoskedasticity, heteroskedasticity heteroskedasticity, homoskedasticityQ1. A real-estate investor has the opportunity to purchase a small apartment complex. The apartment complex costs $4 million and is expected to generate net revenue (net after all operating and finance costs) of $60,000 per month. Of course, the revenue could vary because the occupancy rate is uncertain. Considering the uncertainty, the revenue could vary from a low of − $10,000 to a high of $100,000 per month. Assume that the investor’ s objective is to maximize the value of the investment at the end of 10 years.a) Do you think the investor should buy the apartment complex or invest the $4 million in a 10-year certificate of deposit earning 9.5%? Why? b)b) The city council is currently considering an application to rezone a nearby empty parcel of land. The owner of that land wants to build a small electronics-assembly plant. The proposed plant does not really conflict with the city’s overall land use plan, but it may have a substantial long-term negative effect on the value of the…if multicollineratiy problem exists in equaion which of the following statements is true? a)OLS estimators of the parameters keep their netrality,but their standard errors tend to decrease,so the t values become larger and the t-test is un reliable b)The predctions that will be biased OLS estimators of the parameters become valid c)The t ratios of at least one of the coefficients will be statistically insignificant and the R2 values will be small d)OLS estimators of the parameters keep their neutrality,but their standard errors tend to increase,so the t values become smaller and the t-test loses its reliability
- Management of AG Travel and Tour has identified two groups of individuals thatwould be interested in the vacation package consisting of room and board and/orentertainment. The maximum amount that group 1 is willing to pay for room andboard is GHC 2500 and for entertainment is GHC 500. For group 2, the maximumamount they are willing to pay for room and board is GHC 1800 and forentertainment is GHC 750. Although AG Travel and Tour is not able to identifymembers of either group, it does know that each group values the components ofthe package differently. Assuming there are an equal number of members in eachgroup and that the total membership in each group is a single individual. If themarginal cost of providing the service (room and board and/or entertainment) toeach group is GHC 1000. How much will the profit for AG Travel and Tour be?Management of AG Travel and Tour has identified two groups of individuals thatwould be interested in the vacation package consisting of room and board and/orentertainment. The maximum amount that group 1 is willing to pay for room andboard is GHC 2500 and for entertainment is GHC 500. For group 2, the maximumamount they are willing to pay for room and board is GHC 1800 and forentertainment is GHC 750. Although AG Travel and Tour is not able to identifymembers of either group, it does know that each group values the components ofthe package differently. Assuming there are an equal number of members in eachgroup and that the total membership in each group is a single individual. If themarginal cost of providing the service (room and board and/or entertainment) toeach group is GHC 1000. Since AG Travel and Tour is not able to identify members of each group,what price should it charge for each product?Management of AG Travel and Tour has identified two groups of individuals thatwould be interested in the vacation package consisting of room and board and/orentertainment. The maximum amount that group 1 is willing to pay for room andboard is GHC 2500 and for entertainment is GHC 500. For group 2, the maximumamount they are willing to pay for room and board is GHC 1800 and forentertainment is GHC 750. Although AG Travel and Tour is not able to identifymembers of either group, it does know that each group values the components ofthe package differently. Assuming there are an equal number of members in eachgroup and that the total membership in each group is a single individual. If themarginal cost of providing the service (room and board and/or entertainment) toeach group is GHC 1000. If AG Travel and Tour wants to charge a package price, what is the highestprice it can charge?
- Suppose now that that Y denotes the annual salaries (in thousands of dollars) for US citizenswho are in their 40s and 50; and X is an indicator (dummy) variable: X = 1 if that workergraduated from college and X=0 otherwise. Suppose the average annual salary for this age groupis $45,000 and the estimate for β is β~ = 15 with s.e. = 5.b. What is the upper and lower bound of a 95-percent confidence interval for β~ ?c. In a credible research design attending college would be randomly assigned to a largesample of potential students. Propose such a research design. What are the potential ethicalissues? d. The central problem with drawing credible casual inferences is that the counterfactual cannot be observed. What is the counterfactual in this case? What is a good strategy forobtaining the counter-factual? What are the ethical issues of doing this? b-d please!!!The cumulative learning curve coefficient CLCC(20, 0.8) is defined as follows:a. the cost to produce 20 units in a process with c(1) = 1 and a learning rate of 0.8.b. the cost to produce one unit in a process with c(1) = 20 and a learning rate of 0.8.c. the cost to produce one unit in a process with c(1) = 1 and a learning rate of 0.820.d. the cost to produce the 20th unit in a process with c(1) = 1 and a learning rateof 0.8.Q5. Show that µY = Yµ − µY · 1. Data Mining Regression Evaluation chapter
- DEPENDENT VARIABLE Qc R- SQUARE P- VALUE ON F 64 0.8093 0.0001 INDEPENDENTVARIABLE PARAMETER ESTIMATE STANDARD ERROR T-RATIO P-VALUE INTERCEPT 8.20 4.01 2.04 0.0461 PC -3.54 1.64 -2.16 0.0357 M 0.64287 0.19 3.38 0.0014 PA 0.7854 0.38 2.07 0.0439 6. If tax revenue per capita (M) increases by 10, what will happen to the estimated quantity of cement demanded? Q = f( P, M, PR) where Qc = demand for cement/month (in yards) Pc = the price of cement per yard, M = country’s tax revenues per capita, and PR = the price of asphalt per yard.The application which provides a way of revising conditional probabilities by using available information and provisions for revising conditional probabilities with other information that is useful for management decision making is called? Select one: a. Bayes’ theorem. b. overinvolvement ratios. c. probability rules. d. empirical formula.Exlplain Linear Conditionally Unbiased Estimators and the Gauss–Markov Theorem with its limitations?