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The article “Permeability, Diffusion and Solubility of

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 12E Chapter 5.6

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 12E

Problem 12E

The article “Permeability, Diffusion and Solubility of Gases” (B. Flaconnéche, et al., Oil and Gas Science and Technology, 2001:262-278) reported on a study of the effect of temperature and other factors on gas transport coefficients in semicrystalline polymers. The permeability coefficient (in 10-6 cm3 (STP) /cm • s • MPa) of CO2 was measured for extruded medium- density polyethelene at both 60°C and 61°C. The results are as follows:

60ºC:

54

51

61

67

57

69

60

 

60

63

62

 

 

 

 

61ºC

58

60

66

66

68

61

60

Find a 95% confidence interval for the difference in the permeability coefficent between 60°C and 61ºC.

Step-by-Step Solution:
Step 1 of 3

Lecture 9: Estimating Proportions with Confidence 10.1: Overview of Confidence Intervals Confidence Intervals concept: Use sample data to estimate a population parameter Population (size N) = the whole group that we want to make conclusions on Parameter = summary about population Random sample of size n = a few units selected from population Statistic = summary about the sample Sample estimate = provides our best guess as to what is the value of the population parameter, but it is not 100% accurate. Concept: The value of the sample estimate will vary from one sample to the next. The values often vary around the population parameter and the standard

Step 2 of 3

Chapter 5.6, Problem 12E is Solved
Step 3 of 3

Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

Since the solution to 12E from 5.6 chapter was answered, more than 318 students have viewed the full step-by-step answer. This full solution covers the following key subjects: permeability, semicrystalline, gas, interval, coefficient. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. The full step-by-step solution to problem: 12E from chapter: 5.6 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. The answer to “The article “Permeability, Diffusion and Solubility of Gases” (B. Flaconnéche, et al., Oil and Gas Science and Technology, 2001:262-278) reported on a study of the effect of temperature and other factors on gas transport coefficients in semicrystalline polymers. The permeability coefficient (in 10-6 cm3 (STP) /cm • s • MPa) of CO2 was measured for extruded medium- density polyethelene at both 60°C and 61°C. The results are as follows:60ºC:54516167576960 606362 61ºC58606666686160Find a 95% confidence interval for the difference in the permeability coefficent between 60°C and 61ºC.” is broken down into a number of easy to follow steps, and 86 words.

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