ECO454
The assumptions of the linear stochastic regression model with respect to random variable include
Answer: all of the options
What is the economic implication of the acceptance of the null hypothesis (bi = 0)?
Answer: the explanatory variable does not influence the dependent variable and should not be included in the function.
The coefficient of determinant (r2) is defined as..
Answer: r2 = î£x2/ î£x
The following assumption is true in the relationship between the explanatory variable and the stochastic variable
Answer: ui and x do not covary
What is social forecast?
Answer: this involves predicting changes consumer tastes, demand and attitude.
What is the difference between Z test and t test?
Answer: t –test is used when n>30 while z test when n â%o¥ 30
Which of the following is true about the sources of derivation in parameter model estimation
Answer: all of the options
Which of the values of r2 shows that the variation in the independent variable has no effect on the dependent variable
Answer: r2 = 0.75
Which of the following is not an assumption of full information likelihood?
Answer: full information likelihood method yield estimates that are not biased.
The most appropriate forecasting model needs to be â€|.
Answer: all of the options
What is economic development forecast?
Answer: involves predicting the effect of economic conditions of a country on the operations of an organization
The goodness of any estimator is on the basis of the following properties, except
Answer: high coefficient of determination
Which of these is true when the variance of â€T)’ is constant in each period?
Answer: var(ui) = e(ui)2 = î’2u
The moving average, in practice has several drawbacks which includeâ€|.
Answer: all of the options
The Z test is employed when the sample size isâ€|
Answer: n â%o¥ 30
The acronym BLUE meansâ€|
Answer: best linear unbiased estimator
r2 = 0.75 means that..
Answer: 75 percent of the variation in the dependent variable is attributed to variation in dependent variable
A stationary time series are characterized by, except..
Answer: a mean that is a function of time
The importance of forecasting includeâ€|
Answer: all of the options
The following explain the equation Y = bo + b1X, except
Answer: the relationship between y and x is
inverse
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