The probability that the democrat will win depends on the value of ADAACA
variable. So, you need to plot the probability against ADDACA.
Kosuke
On Wed, 26 Mar 2003, Mee-Jung Jang wrote:
Hi Kosuke,
for part b(first differences), you say that "for each scenario, graph the
mean probability and 95% confidence of the Democratic victory for the
whole range of ADAACA variable". By this, do you mean, we should graph the
*effect* that the ADAACA variable has on the Democratic victory? Should we
be getting the mean *change* in probability and the 95% confidence
interval for the *change* in probability that the ADAACA variable has?
thanks,
mee-jung