Maurice Tutor

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Teaching Since: May 2017
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 18 Jan 2018 My Price 4.00

Fire Clay Coal Bed

26.  The article “Quality of the Fire Clay Coal Bed, South- eastern Kentucky” (J. Hower, W. Andrews, et al., Jour- nal of Coal Quality, 1994:13–26) contains measure- ments on samples of coal from several counties in Kentucky. In units of percent ash, five samples from Knott County had an average aluminum dioxide (AlO2 ) content of 32.17 and a standard deviation of

2.23. Six samples from Leslie County had an    aver-

age AlO2 content of 26.48 and a standard deviation of 2.02. Find a 98% confidence interval for the differ- ence in AlO2 content between coal samples from the two counties.

Answers

Maurice Tutor
(5)
Status NEW Posted 18 Jan 2018 07:01 PM My Price 4.00

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