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| Teaching Since: | May 2017 |
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| Questions Answered: | 20103 |
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MBA, PHD
Phoniex
Jul-2007 - Jun-2012
Corportae Manager
ChevronTexaco Corporation
Feb-2009 - Nov-2016
Question description
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If Tennant Creek Town’s daily water demand is approximately normally distributed with a mean of 5 ml and a standard deviation of 1.25ml:
a) Estimate the number of days in a (365 day) year on which daily consumption is:
i. 50% or more greater than the mean. [1 Marks]
ii. within two standard deviation of the mean. [1 Marks]
iii. below the first quartile level of demand. [1 Marks]
b) If the water supply authority decides to save money by setting supply capacity to a level adequate to satisfy daily demand on 95% of all days at what level should capacity be set?Â
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