Question

oBauce Bing sampling will capture the true mean I1 pt] Let p denote the population proportion of reviewers who rate Iron Man 3 with score of 80 or higher. A 90% confidence interval for p is: 5. (a) [0.291, 0.626] (b) 10.374, 0.709] (c) [0.259, 0.658 (d) A confidence interval using the Central Limit Theorem should not be used because the sample size to build a confidence interval for the proportion is too small. will correctly solve about 80% to 90% of the problems. [Part A: Module II Problem Set] [Metacritic and Iron Man 3] Metacritic is a website that aggregates reviews of music, games, and movies. For each product, a numerical score is obtained from each review and the website posts the average score as well as Metacritic uses a different method of scoring that converts each review into score in 100-point scale. In individual reviews. The website is somewhat similar to Rotten Tomatoes, but addition to using the reviewer's quantitative ratimgs (stars, 10-point scale), Metacritic manually assess the tone of the review before scoring. Historical data shows that these converted scores are normally distributed. One of the movies that the Metacritic rated was Iron-Man 3. The first review came out on April 22 (Robbie Collin from the Telegraph) and other reviews started to trickle in before the movie was released on May 3, 2013. The following data contains a sample of the media outlets, reviewers, scores and review dates for all reviews that Metacritic collected until May 1, 2013. Use this data set to answer questions 1 to 5.

Answer 1

2.H The go confidence interval is PCIP) 2 from z -table The 90% confidence intervcal is option Ca corsect