1.) When computing a confidence interval, as n inncreases does the CI get wider or narrower? Why (one sentence)?
2.) When you LOWER the confidence level does the CI get wider or narrower? Why (one sentence)?
3.) When comparing to metrics how do you know if they are statistically significant?
4.) If the average from one metric is different from another metric - are they always statitically significant? Are they always NOT statistically significant? Does this make sense?
5.) What is the Pvalue.