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The article “Cellulose Acetate Microspheres Prepared by

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

Solution for problem 19E Chapter 9.3

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 19E

The article “Cellulose Acetate Microspheres Prepared by OAV Emulsificatipn and Solvent Evaporation Method" (j(. Soppinmath, A Kulkarni, et al„ Journal of Microencapsulation. 2001:811-817) describes a study of the effects 0f the concentrations of polyvinyl alcohol (PVAL) and dichloromethane (DCM) on the encapsulation efficiency in a process that produces microspheres containing the drug ibuprofen. There were three concentrations of PVAL (measured in units of % w/v) and three of DCM (in mL). The results presented in the following table are consistent with the means and standard deviations presented in the article.

PVAL

DCM = 50

DCM = 40

DCM = 30

0.5

98.983

99.268

95.149

96.810

96.810

 86.718

75.288

74.949

72.363

1.0

89.827

94.136

96.537

82.352

79.156

80.891

76.625

76.941

72.635

2.0

95.095

95.153

92.353

86.153

91.653

87.994

80.059

79.200

77.141

a. Construct an ANOVA table. You may give ranges for the P-values.

b.Discuss the relationships among PVAL concentration, DCM concentration, and encapsulation efficiency.

Step-by-Step Solution:
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Chapter 9.3, Problem 19E is Solved
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Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

The answer to “The article “Cellulose Acetate Microspheres Prepared by OAV Emulsificatipn and Solvent Evaporation Method" (j(. Soppinmath, A Kulkarni, et al„ Journal of Microencapsulation. 2001:811-817) describes a study of the effects 0f the concentrations of polyvinyl alcohol (PVAL) and dichloromethane (DCM) on the encapsulation efficiency in a process that produces microspheres containing the drug ibuprofen. There were three concentrations of PVAL (measured in units of % w/v) and three of DCM (in mL). The results presented in the following table are consistent with the means and standard deviations presented in the article.PVALDCM = 50DCM = 40DCM = 300.598.98399.26895.14996.81096.810 86.71875.28874.94972.3631.089.82794.13696.53782.35279.15680.89176.62576.94172.6352.095.09595.15392.35386.15391.65387.99480.05979.20077.141a. Construct an ANOVA table. You may give ranges for the P-values.________________b.Discuss the relationships among PVAL concentration, DCM concentration, and encapsulation efficiency.” is broken down into a number of easy to follow steps, and 118 words. This full solution covers the following key subjects: dcm, pval, concentration, presented, microspheres. This expansive textbook survival guide covers 153 chapters, and 2440 solutions. This textbook survival guide was created for the textbook: Statistics for Engineers and Scientists , edition: 4. The full step-by-step solution to problem: 19E from chapter: 9.3 was answered by , our top Statistics solution expert on 06/28/17, 11:15AM. Statistics for Engineers and Scientists was written by and is associated to the ISBN: 9780073401331. Since the solution to 19E from 9.3 chapter was answered, more than 255 students have viewed the full step-by-step answer.

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