Question 361:

Asked on August 30, 2008

1

Answer:

No answer provided yet.

I would construct a confidence interval around the number of games it predicted successfully. Which would be the proportion of 70% of 600 or 420/600. Use the confidence interval around a proportion calculator. A 95% confidence interval shows a proportion of correct choices between 66.2% and 73.5%, which you could use as a gauge of future accuracy. 

Of course, I'd be remiss if I didn't warn that past prediction success is no guarantee of future success, just ask any Hedge Fund manager.