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To: Broken_Clock who wrote (4865)12/11/1997 5:04:00 PM
From: Chuzzlewit  Read Replies (2) | Respond to of 95453
 
Nope, the analogy doesn't work, because forecasts by meteorologists are pretty accurate, and weather is predictable! Try this test. Go to a neutral site and find some T/A predictions about how any stock will behave the next day, and categorize that prediction as either up or down. Now look up the price the following day and see what happened. If T/A is no better than random (as I believe), then the number of correct predictions should approximately equal the number of incorrect predictions. Throw out those where there was no change in the price of the stock.

No fair not putting time limits on T/A! No weather forecaster would tell you to expect sub-zero whether, and not tell you when. So statements like the stock will test the upper resistance level, bounce off the lower Bollinger band and then retest its historic highs don't count. The forecast is not precise and entirely open-ended.

If you want to get really sophisticated you could test the distributuion using the chi-square statistic with 1 degree of freedom.

Try it and see what happens!

Regards,

Paul