Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 28 Aug 2017 My Price 4.00

water cotton crops

Unfortunately, arsenic occurs naturally in some ground water†. A mean arsenic level ofµ = 8.0 parts per billion (ppb) is considered safe for agricultural use. A well in Texas is used to water cotton crops. This well is tested on a regular basis for arsenic. A random sample of36 tests gave a sample mean ofx = 7.2 ppb arsenic, withs = 2.0 ppb. Does this information indicate that the mean level of arsenic in this well is less than 8 ppb? Usea = 0.10.

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Maurice Tutor
(5)
Status NEW Posted 28 Aug 2017 04:08 PM My Price 4.00

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