strictly speaking, no propositions at all can be "proved" with statistics. All one can say is that your hypothesis survived a statistical test. Jim D.
-----Original Message----- From: Doug Henwood [mailto:[EMAIL PROTECTED] Sent: Wed 2/25/2004 9:11 PM To: [EMAIL PROTECTED] Cc: Subject: Re: [PEN-L] demo fervor Sabri Oncu wrote: >Since "in the long run we are all dead", we have no >means of collecting enough data If I'm remembering the literature correctly, there's not enough data to prove with statistical certainty that stock returns are positive over the long term. Doug