Answer Happy

Question 6 What is true in generaal about confidence intervals? (a) A wider interval (with confidence level fixed) represents [Select] (b) A 95% z-Cl will be [Select ] the same data. Answer 1: (c) As a increases, the CI will become wider (d) As the sample size n increases, the CI will become narrower more Answer 2: narrower than Answer 3: wider Answer 4: narrower 2/4 pts uncertainty in the parameter estimate. a 90% z-CI built on