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Elementary,Middle School,High School,College,University,PHD

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Applied Sciences,Chemistry See all
Applied Sciences,Chemistry,Communications,Economics,Engineering,Environmental science Hide all
Teaching Since: Apr 2017
Last Sign in: 269 Weeks Ago, 6 Days Ago
Questions Answered: 352
Tutorials Posted: 351

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  • MBA,PHD in Psychology
    Northwest Florida State College
    Jun-1992 - May-1997

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  • Professor
    Northwest Florida State College,
    Aug-2006 - Nov-2015

Category > Economics Posted 03 May 2017 My Price 9.00

A process that manufactures vinyl for automobile seat covers was studied.

.     A process that manufactures vinyl for automobile seat covers was studied. Three factors were varied: the proportion of a certain plasticizer (A), the rate of extrusion (B), and the temperature of drying (C). The outcome of interest was the thickness of the vinyl (in mils). A 23 factorial design with four replicates was employed. The results are presented in the following table. (Based on the article “Split-Plot Designs and Estimation Methods for Mixture Experiments with Process Variables,” S. Kowalski, J. Cornell, and G. Vining, Technometrics, 2002:72–79.)

 

A        B        C        Thickness

 

–1

–1

–1

7

5

6

7

1

–1

–1

6

5

5

5

–1

1

–1

8

8

4

6

1

1

–1

9

5

6

9

–1

–1

1

7

6

5

5

1

–1

1

7

7

11

10

–1

1

1

6

4    5    8

1

1

1

8

11  11    9

 

 

a.    Estimate all main effects and interactions.

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

c.    Is the additive model appropriate? Explain.

d.    What conclusions about the factors can be drawn from these results?

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CourseWork
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Status NEW Posted 03 May 2017 12:05 PM My Price 9.00

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