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Get Full Access to Materials Science And Engineering: An Introduction - 9 Edition - Chapter 5 - Problem 5.5
Get Full Access to Materials Science And Engineering: An Introduction - 9 Edition - Chapter 5 - Problem 5.5

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# Solved: Carbon diffuses in iron via an interstitial ISBN: 9781118324578 140

## Solution for problem 5.5 Chapter 5

Materials Science and Engineering: An Introduction | 9th Edition

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Problem 5.5

Carbon diffuses in iron via an interstitial mechanismfor BCC iron from one tetrahedral site to an adjacent one. In Section 4.3 (Figure 4.3b) we note that a general set of point coordinates for this site are 1 1 2 1 4. Specify the family of crystallographic directions in which this diffusion of carbon in BCC iron takes place.

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4.3.2 WILCOXON SIGNED-RANK TEST 1) Used for the differences between two samples. In this case we take the differences (D’s) and test the null hypothesis a. H :0Distribution of D’s is symmetric about the nullval∆e against the alternatives of D ▯ values tending to be smaller than▯ or D values tending to be larger th∆n▯ b. Rank the absolute values of the differences c. Calculate the test statistis+, by adding all off differences 2) Note: 3) The test statistic, denoted by W: 4) The null is rejected if 4.3.3 LEVENES TEST FOR VARIANCES 1) Used for comparing more than 2 population variations a. Deals with variances

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##### ISBN: 9781118324578

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