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Eviews Sample Assignment Solved by the Experts
1. How to interpret coefficients in the linear model if variables are
in logs? Presented By our EViews Assignment Experts.
How do you Interpreate the coefficients on dummies.
Models that are not linear in the variables can often be made to take a
linear form by applying a suitable transformation or manipulation.
For example, consider the following exponential regression model Yt = AXβt eut
it can be made into a classical linear regression model by logarithmic
transformation as yt = α + βxt + ut where α = ln(A), yt = ln Yt and xt = ln Xt
The coefficient estimates are interpreted as elasticities
(strictly, they are unit changes on a logarithmic scale). Thus a coefficient
estimate of β is interpreted as stating that ‘a rise in X of 1% will lead on
average, everything else being equal, to a rise in Y of β %’. Dummy variables are
qualitative variables because they are often used to numerically represent
a qualitative entity. Examples male = 0, female = 1. The coefficients on
the dummy variables can be interpreted as the average differences in the
values of the dependent variable for each category, given all of the other
factors in the model. Sample Question solved by All Homework Assignments Experts.
2. OLS estimates are BLUE. Explain it. Does it affect the residuals in
your model? By Statistics Assignment Help Experts.
Estimators αˆ and βˆ determined by OLS will have a number of desirable properties,
and are known as Best Linear Unbiased Estimators (BLUE).
● ‘Estimator’ -- αˆ and βˆ are estimators of the true value of α and β
● ‘Linear’ -- αˆ and βˆ are linear estimators -- that means that the formulae
for αˆ and βˆ are linear combinations of the random variables (in this case, y)
● ‘Unbiased’ -- on average, the actual values of αˆ and βˆ will be equal to
their true values A brief overview of the classical linear regression model
● ‘Best’ -- means that the OLS estimator βˆ has minimum variance among the
class of linear unbiased estimators.
The primary property of OLS estimators is that they satisfy the criteria of
minimizing the sum of squared residuals. The observed values of X are uncorrelated
with the residuals. The sum of the residuals is zero. The sample mean of the
residuals is zero. The predicted values of y are uncorrelated with the residuals. This is how out Expert team id going to help you with your EViews Assignment Help.