According to the journal Chemical Engineering, an important property of a fiber is its water absorbency. A

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According to the journal Chemical Engineering, an important property of a fiber is its water absorbency. A random sample of 20 pieces of cotton fiber is taken and the absorbency on each piece was measured. The following are the absorbency values:

20.72 19.29 22.43 18.71 21.41 21.81 20.17 18.92 20.33 19.44 22.85 23.71 20.50 23.00 19.25 21.77 19.77 18.04 21.12. 22.11

(a) Calculate the sample mean and median for the above sample values.

(b) Compute the 10% trimmed mean.

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Probability & Statistics For Engineers & Scientists

ISBN: 9780130415295

7th Edition

Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying

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Question Posted: Feb 02, 2011 05:49 AM

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According to the journal Chemical Engineering, an important property of a fiber is its water absorbency. A

Question:

20.72 19.29 22.43 18.71 21.41 21.81 20.17 18.92 20.33 19.44 22.85 23.71 20.50 23.00 19.25 21.77 19.77 18.04 21.12. 22.11

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Probability & Statistics For Engineers & Scientists

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