What is a Confidence Interval Question 1 (3 points) For a confidence interval for a population parameter (e.g., the population mean) computed at a 91% confidence level, what proportion of all possible confidence intervals will contain the true parameter value? Enter answer with 2 decimal places. Your Answer: Answer Hide hint for Question 1 The confidence interval is a function of a sample, which is random. So, confidence intervals are also random. Not all will contain the true parameter value. O a W P . .... .... 4+ 144 & 5 O 8 RQuestion 2 (3 points) With 80% confidence, for sample proportion 0.48 and sample size 21, what is the upper confidence limit with 2 decimal places? Your Answer: Answer |Hide hint for Question 2 What is the critical value for an 80% confidence level? Previous Page Next Page Page 2 of 27 W P X 144 8 YU P