Significance Test and Confidence Intervals In General: You are reading an article in your field that reports several statistical analyses. The article says that the P-value for a significance test is 0.045. Ifs the significant at the 5% significance level?
Is the result with P-value 0.045 significant at the 1% level?
For another significance test, the article says that the result was significant at the 1% level. Arte such results always, sometimes, or never significant at the 5% level?
The article contains a 95% confidence interval. Would the margin of error in a 99% confidence interval computed from the same data be less, the same, or greater?
Is the result with P-value 0.045 significant at the 1% level?
For another significance test, the article says that the result was significant at the 1% level. Arte such results always, sometimes, or never significant at the 5% level?
The article contains a 95% confidence interval. Would the margin of error in a 99% confidence interval computed from the same data be less, the same, or greater?