File number limit: 1 Single file size limit: 10MB Allowed file types: Word, Excel, PPT, PDF, Image, Video, Audio 12. JimBob needs help (what else is new, right?). He wants to know how to create a confidence interval but he left his book at home. However, he wrote down some key information about the problem: sd = 4.5, mean = 10.8, n = 35, 98% confidence level. (6 Points) When building the confidence interval, does it matter whether the problem gives you the population standard deviation or the sample standard deviation? Why or why not? Enter your answer 13. A new process for producing synthetic gems yielded six randomly selected stones weighing 0.43, 0.52, 0.46, 0.49, 0.60, 0.56 carats in its first run of 2000 gems. Assume the standard deviation of