An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range: 416 421 421 422 425 427 431 434 436 439 446 447 448 453 458 462 465 (3) Construct a boxplot of the data. O 420 430 440 450 460 420 430 440 450 460 O 420 430 440 450 420 430 440 450 460 go (c) Calculate a two-sided 95% confidence interval for true average degree of polymerization. (Round your answers to two decimal places.) (l430.37 lg ,446.07 |x )