What does a significance level of .05 mean?
1) 5 out of 100 findings that appear to be valid will be due to chance
2) 95 out of 100 findings that appear to be valid will be due to chance
3) 5 out of 100 findings that appear to be valid will not be due to chance
4) 95 out of 100 findings that appear to be valid will not be due to chance
