Why does dependent variables must covariate in the multivariate analyses like MANOVA/MANCOVA? What happens if they don't covariate, will you be able to proceed in multivariate analyses?
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Q: Suppose we are considering a hungry individual in the Gross-man model deciding what to have for…
A: Hi, thanks for the question. Since you posted multiple questions, we will answer first three…
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A: There are 2 variables,dependent and independent variables.
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Q: What are the Least Squares Assumptions? also explain the usage of these Assumptions?
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Q: write a short note about the following variables and support your answers by giving examples for…
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- Describe the Probabilistic Analysis?Econometrics Thomas Eisensee and David Stromberg wanted to measure how much news coverage of a foreign disaster impacted the amount of disaster relief provided by the U.S. government. They argue that the simple relationship would be biased. Let X = Minutes of News Coverage and Y= Disaster Aid. Choose a variable X2 that could bias the simple relationship. This variable should impact the amount of coverage and impact the amount of aid for reasons other than purely news coverage. Eisensee and Stromberg introduce an instrument Z = During the Olympics. Explain how Z could satisfy the relevant and exogenous criteria. Explain how you could use Z to estimate the impact of X on Y free from X2 bias. Hint: you should mention two stages.Nadya is worried about poor people disproportionately exposed to pollution. She suggests the model where pollution in the area is regressed on average housing price in that area, and the number of pro-environmental voters in the area. She also knows that housing price in the area depends on pollution in the area, and the number of good schools in this area. Assuming that all the variables are significant and there are no other omitted variables affecting the dependent variables, can Nadya use Indirect Least Squares in this setting? O True O False
- What is the difference between univariate and multivariate analysis? Give an example for when a univariate analysis might be used and an example of when we use multivariate analysis.Suppose that you had data on the amount of pollution in London every year. Write down the regression equation that you would need to estimate to measure the effect of ULEZ on pollution. Describe carefully what the dependent variable, the independent variable, the unit of observation (time or location), and the main coefficient of interest are. What control variables do you think should be included in this regression?A kids' organization sold 570 bars last year at $ 2.55 per candy bar. Research has suggested that for each $ 0.25 price increase, they will sell 20 less candy bars. They want to know what price should they sell their candy bars at to maximize their revenue. Please help them out, showing your work neatly in the following steps. And please label the steps clearly with the letters A through F A) Define your variables. This means that for every letter you use to represent a value, you communicate what it equals in words. B) Find the linear equation that relates the price and the number sold. C) Determine a function that represents the Revenue. (Remember, Revenue = (Price)*(Number Sold)). D) Graph your revenue function on your calculator or Desmos or something similar and on your paper, labeling the axes and the maximum point. E) Uusing your calculator or Desmos or something similar, use your graph to determine the price that maximizes the revenue for the organization. Do NOT use calculus…
- Exlplain Linear Conditionally Unbiased Estimators and the Gauss–Markov Theorem with its limitations?Is auto correlation possible in cross-sectional data? why?Southwest Airlines is able to keep fares low, in part because of relatively low maintenance costs on its airplanes. One of the main reasons for the low maintenance costs is that Southwest flies only one type of aircraft, the Boeing 737. However, Southwest flies three different versions of the 737. Suppose Southwest decides to conduct a study to determine whether there is a significant difference in the average annual maintenance costs for the three types of 737s used. a. State an independent variable for such a study. b. What are some of the levels or classifications that might be studied under this variable? c. Give a dependent variable for this study.
- Review the logic of spuriousness. Can you think up an example where an observed relationship between two variables could actually be explained away by a third variable?(Econmetrics) Q.1 How can you test for general misspecification of model if it would have only (any of) two independent variables?What is Regression Model in econometrics?