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The presence of autocorrelation leads to all of the following undesirable consequences in the regression results except:
a the least-squares estimates of the regression coefficients will be biased
b the t-statistics may yield incorrect conclusions concerning the significance of the individual independent variables
c overall measures of the goodness-of-fit and explanatory power of the regression model (such as r-square and F-tests)will no longer provide reliable information as to the significance of the economic relationship
d the least-squares procedure will tend to underestimate the sampling variances of the estimates of the regression coefficients
e both a and b
An ice cream vendor sells three flavors: chocolate, strawberry, and vanilla. 45% of the sales are chocolate, while 30% are strawberry, with the rest vanilla flavored.
Period company return market index return, Determine the company and the market index and show the calculations.
Auto Data manufactures custom engineering testing machine. The following 5-orders are currently in the design department:
Determine which of the following is a test of the statistical signficiance of the entire regression equation?
A linear trend equation for sales of form Qt = a + bt was estimated using yearly sales information for the period 2000 - 2007. The results of regression are given below:
When a recession is over, do people start to immediately feel affects of an efficient economy? Use the experience of most recent recession to justify your answer.
Solve the forecast model
Assume that when using the multiple regression in the formula Y = b1X1 and b2X2 + E that X1 represents wages and X2 represents transportation expenses?
Estimating equation through a correcting factor to correct heteroskedasticity may cause extra correlation to enter the model, which increase the R^2.
Suppose you have some information on a sample of investment bankers, and are interested in impacts of height and of seniority on their success.
Explain difference between profit maximization and shareholder wealth maximization and determine which of these is a more comprehensive statement of a firm's economic objectives?
If beta of portfolio is .326, the present yield to maturity on United States government bonds maturing in one year and an assessment that market risk premium.
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