Hello everybody,
I have this problem:
After creating the descriptive statistics of my sample I want to show that the mean of a certain variable is statistically significant.
For example the mean of var1 is 0,45. Now I want to show that the positive sign is significant.
Is ttest the appropriate way to do so?
Moreover, in another sample I want to predict the GDP using two different regression models.
Finally, I want to compare the predicted values with the real GDP, that is, I will compare the mean and the median of the inaccuracy.
Inaccuracy is defined as (GDP_predicted - GDP)/GDP
Is there a way to show that the median (mean) inaccuracies of the two models are statistically different from each other?
may be *signtest*???
thanks
bastian s
--
Sensationsangebot nur bis 30.11: GMX FreeDSL - Telefonanschluss + DSL
für nur 16,37 Euro/mtl.!* http://dsl.gmx.de/?ac=OM.AD.PD003K11308T4569a
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
