An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range: 418 420 422 422 425 428 431 434 437 438 445 446 449 451 458 462 465 (a) Construct a boxplot of the data.         Comment on any interesting features. (Select all that apply.) The data appears to be centered near 438.There are no outliers.The data is strongly skewed.There is little or no skew.The data appears to be centered near 428.There is one outlier. (b) Is it plausible that the given sample observations were selected from a normal distribution? YesNo     (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 445 is a plausible value for true average degree of polymerization? YesNo     Does the interval suggest that 456 is a plausible value? YesNo     You may need to use the appropriate table in the Appendix of Tables to answer this question.

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Chapter1: Combinatorial Analysis
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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:

418 420 422 422 425 428 431 434 437
438 445 446 449 451 458 462 465
(a) Construct a boxplot of the data.
   
   

Comment on any interesting features. (Select all that apply.)
The data appears to be centered near 438.There are no outliers.The data is strongly skewed.There is little or no skew.The data appears to be centered near 428.There is one outlier.

(b) Is it plausible that the given sample observations were selected from a normal distribution?
YesNo    

(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 445 is a plausible value for true average degree of polymerization?
YesNo    

Does the interval suggest that 456 is a plausible value?
YesNo    



You may need to use the appropriate table in the Appendix of Tables to answer this question.

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