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Problem:
(a) Why is an error term added to a regression and explain its importance in the OLS procedure?
(b) Suppose we have a linear equation with a constant term, one explanatory variable and an error term, show in details the steps required, using the OLS procedure, to derive the estimates of the constant term and that of the coefficient of the explanatory variable.
(c) Suppose a researcher wants to test whether the returns on a company stock (y) show unit sensitivity to two factors (factor x2 and factor x3) among three considered. The regression is carried out on 144 monthly observations. The regression is: Yt = β1 + β2x2t + β3x3t + β4x4t+ ut
i) What are the restricted and unrestricted regressions?
ii) If the two RSS are 502.4 and 302.8 respectively, perform an F-test of the restriction, showing all the required steps.
(d) How are the t-test and the F-test related and describe in which cases they cannot be applied?
why value of marginal product is negatively sloped
Functions
The largest public utility company in New South Wales (NSW) is the sole provider of electricity across all regions in the state. The monthly demand for electricity in NSW is given
1. Select a data series that you wish to forecast. Make sure that it has some importance to you relative to business, future occupation or other special interest. Obtain monthly or
MUa/MUb how it happens? and why this occur?
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What are the basic economic institutions? There are two fundamental economic institutions which have been so far used into the real world are as: a. Market economic institut
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