Many celebrities and public figures have Twitter accounts with large numbers of followers. However, some of these followers are fake, resulting from accounts generated by spamming computers. In a sample of 53 twitter audits, the mean percentage of fake followers was 13.3 with a standard deviation of 9.8 . Part: 0 / 20 of 2 Parts Complete Part 1 of 2 (a) Construct a 99.8% confidence interval for the mean percentage of fake Twitter followers. Round the answers to at least one decimal place. A 99.8% confidence interval for the mean percentage of fake Twitter followers is .