Question 723330: how does a type 1 error relates to level of confidence?
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! CL = confidence level
CL = 1 - alpha
alpha = probability of type 1 error, so this means that the confidence level directly affects the probability of a type one error (or vice versa)
Example: say you set the confidence level to be 99%, this would make alpha = 0.01 which means that the probability of making a type 1 error is 0.01
Another example: say you make alpha = 0.05, this would make CL = 1-alpha ---> CL = 1-0.05 = 0.95 = 95%, giving you a 95% confidence level
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