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In a small-disc test a small, disc-shaped portion of a

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

Solution for problem 10E Chapter 9.5

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 10E

In a small-disc test a small, disc-shaped portion of a component is loaded until failure. The article “Optimizing the Sensitivity of the Small-Disc Creep Test to Damage and Test Conditions” (M. Evans and D. Wang, J. Strain Analysis, 2007:389^113) presents the results of a factorial experiment to estimate the effects of properties of the disc on the time to failure (in ms). The data in the following table are presented as a 25 design. The factors are A: hole diameter. B: disc diameter, C: disc thickness, D: punch head radius, and E: friction coefficient. Two other factors discussed in. the article are not considered here.

Treatmen

Outcome

Treatment

Outcome

Treatment

Outcome

Treatment

Outcome

1

2486.8

d

2912.3

e

2508.6

de

2915.0

a

1328.1

ad

1507.2

ae

1319.4

ade

1536.7

b

2470.2

bd

2885.3

be

2446.8

bde

2872.8

ab

1303.2

abd

1491.8

abe

1303.3

abde

1477.9

c

6817.4

cd

7723.0

ce

6864.7

cde

7731.6

ac

3845.2

acd

4289.3

ace

3875.0

acde

4345.1

be

7045.1

bed

7952.8

bee

6994.2

bcde

7969.1

abc

3992.2

abed

4505.5

abce

3961.2

abcde

4494.5

a. Compute estimates Of the main effects and the interactions.

b. If you were to design a follow-up experiment, which factors would you focus on? Why?

Step-by-Step Solution:
Step 1 of 3

DIAGNOSTIC INTERVIEWING & EVALUATION Purpose of the Interview ● Referral Source/reason ● Assessment of current functioning ● Assessment of current symptoms ● Assessment of patient’s relevant history ● Assessment of patient’s goals ● Result = diagnosis & determination of treatment plan Referral Sources...

Step 2 of 3

Chapter 9.5, Problem 10E is Solved
Step 3 of 3

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

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