5. What does it mean to say that a=0.05 when describing a Type I error?

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5. What does it mean to say that a=0.05 when describing a Type I error?
Transcribed Image Text:5. What does it mean to say that a=0.05 when describing a Type I error?
5. This is the probability that we reject the null hypothesis when it is, in fact, true. That
is (reject HO|HO is true)=5%. This allows us to be 95% confident that we fail to reject HO
when it is true, a correct decision.
Transcribed Image Text:5. This is the probability that we reject the null hypothesis when it is, in fact, true. That is (reject HO|HO is true)=5%. This allows us to be 95% confident that we fail to reject HO when it is true, a correct decision.
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