When all four trend regression equations are compared, which of them provides th

Question

When all four trend regression equations are compared, which of them provides the best fit? a). linear b). exponential c). quadratic d). cubic What is the revenue forecast for 2013 found by the trend regression equation with the best fit? a). About 2 billion and 512 million dollars b). About 2 billion and 95 million dollars c). About 2 billion and 248 million dollars d). About 2 billion and 334 million dollars Which of the following methods is probably not appropriate to use if the time series exhibits an upward or downward tendency? a). Seasonal Method b). Linear Trend Model c). Moving Averages d). Autoregressive If r^2 - +.60, we can conclude that: a). 60 percent of the sample cases were above the regression line. b). 60 percent the variability of the Y values is explained by the linear relationship with X. c). the variability of the Y values around the regression line is 60 percent less this that of the Y values when no account of X is taken. d). on the average, Y will increase by, 60 when X is increased by one unit. The residuals represent a). the difference between the actual Y values and the mean of Y. b). the difference between the actual Y values and the predicted Y values. c). the predicted value of Y for the average X value. d) the difference between the predicted values of Y and the mean of Y.

Explanation / Answer

39) option a exponential is the best fit

40)

option d 2 billion 334 million dollars

41) option a seastional methods

42)option c

43)option d

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