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The article "Permeability, Diffusion and Solubility of Gases" (B. Flaconnèche, 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 CO, was measured for extruded medium-density polyethylene at both 60°C and 61°C. The results are as follows: 60°C: 54 51 61 67 57 69 60 60 63 62 61°C: 58 60 66 66 68 61 60 Find a 95% confidence interval for the difference in the permeability coefficent between 60°C and 61°C.

The article "Permeability, Diffusion and Solubility of Gases" (B. Flaconnèche, 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 CO, was measured for extruded medium-density polyethylene at both 60°C and 61°C. The results are as follows: 60°C: 54 51 61 67 57 69 60 60 63 62 61°C: 58 60 66 66 68 61 60 Find a 95% confidence interval for the difference in the permeability coefficent between 60°C and 61°C.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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The article "Permeability, Diffusion and Solubility of Gases" (B. Flaconnèche, 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 CO, was measured for extruded medium-density polyethylene at both 60°C and 61°C. The results are as follows: 60°C: 54 51 61 67 57 69 60 60 63 62 61°C: 58 60 66 66 68 61 60 Find a 95% confidence interval for the difference in the permeability coefficent between 60°C and 61°C.
Transcribed Image Text:The article "Permeability, Diffusion and Solubility of Gases" (B. Flaconnèche, 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 CO, was measured for extruded medium-density polyethylene at both 60°C and 61°C. The results are as follows: 60°C: 54 51 61 67 57 69 60 60 63 62 61°C: 58 60 66 66 68 61 60 Find a 95% confidence interval for the difference in the permeability coefficent between 60°C and 61°C.
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Follow-up Question
Based on your confidence interval from the previous problem, can you conclude that the mean permeability coefficient at 60∘60∘C differs from that at 61∘61∘C at the 0.05 level of significance?
A.
Yes, because the 95% confidence interval includes 0
B.
No, because the 95% confidence interval includes 0
C.
Yes, because the 95% confidence interval does not include 0
D.
No, because the 95% confidence interval does not include 0
E.
It is impossible answer this question only using the 95% confidence interval.
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