economics
posted by Miss Cheong .
A linear trend equation for sale of the form Qt = a + bt was estimated for the period 19932007 (i.e. t=1993, 1994, 2007) The results of the regression are as follow:
Dependent variable : Qt, RSquare, Fratio, PValue on F
Observations : 15, 0.6602, 25.262, 0.0002
Variable, Parameter Estimate, Standard Error, Tratio, Pvalue
Intercept 73.71460, 34.08, 2.16, 0.0498
t 3.7621, 0.749, 5.02, 0.0002
a) Evaluate the statistical significance of the estimated coefficients (use 5 percent for significance level) Does this equation indicate a significant trend? (6m)
b) Using this equation, forecast sales in 2008 and 2009. (4M)
c) Comment on the precision of these two forecasts. (4m)
Thank you

Anyone？or any similar question with this?thanks..

Anyone know how to do this? urgent...thank you very much.