What is a Confidence Interval Question 1 (3 points) Choose the answer(s) that is(are) correct. Increasing the confidence level increases the width of a confidence interval. Decreasing the confidence level increases the width of a confidence interval. A confidence interval with a 100% confidence level can be computed. Increasing sample size decreases the width of a confidence interval. Decreasing sample size decreases the width of a confidence interval. Match the rules for rejecting HO at the right to the following tests For any test hypothesis, ANOVA, or Chi Squared, this rule for rejecting HO always applies Two-tail test with lower and upper reject regions One-tail test with upper reject region One-tail test with lower reject region 1. test statistic> positive critical value 2. test statistic < negative critical value 3. test statistic outside interval (negative critical value, positive critical value) 4. pvalue