An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle ran 415 420 422 423 425 428 430 434 437 439 445 446 448 453 456 461 465 (a) Construct a boxplot of the data. 420 430 440 450 420 430 440 450 460 420 430 440 450 460 420 430 440 450 460 Comment on any interesting features. (Select all that apply.) The data appears to be centered near 438. There is one outlier. The data is strongly skewed. The data appears to be centered near 428. There is little or no skew. There are no outliers. (b) Is it plausible that the given sample observations were selected from a normal distribution? O Yes O No (c) Calculate a two-sided 95% confidence interval for true average degree of polymerization. (Round your answers to two decimal places.) Does the interval suggest that 440 is a plausible value for true average degree of polymerization? O Yes O No Does the interval suggest that 453 is a plausible value? O Yes O No

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range:
415 420 422 423 425 428 430 434 437
439 445 446 448 453 456 461 465
(a) Construct a boxplot of the data.
420
430
440
450
420
430
440
450
460
420
430
440
450
460
420
430
440
450
460
Comment on any interesting features. (Select all that apply.)
The data appears to be centered near 438.
There is one outlier.
The data is strongly skewed.
The data appears to be centered near 428.
There is little or no skew.
There are no outliers.
(b) Is it plausible that the given sample observations were selected from a normal distribution?
O Yes
No
(c) Calculate a two-sided 95% confidence interval for true average degree of polymerization. (Round your answers to two decimal places.)
Does the interval suggest that 440 is a plausible value for true average degree of polymerization?
O Yes
O No
Does the interval suggest that 453 is a plausible value?
O Yes
O No
Transcribed Image Text:An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range: 415 420 422 423 425 428 430 434 437 439 445 446 448 453 456 461 465 (a) Construct a boxplot of the data. 420 430 440 450 420 430 440 450 460 420 430 440 450 460 420 430 440 450 460 Comment on any interesting features. (Select all that apply.) The data appears to be centered near 438. There is one outlier. The data is strongly skewed. The data appears to be centered near 428. There is little or no skew. There are no outliers. (b) Is it plausible that the given sample observations were selected from a normal distribution? O Yes No (c) Calculate a two-sided 95% confidence interval for true average degree of polymerization. (Round your answers to two decimal places.) Does the interval suggest that 440 is a plausible value for true average degree of polymerization? O Yes O No Does the interval suggest that 453 is a plausible value? O Yes O No
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