Question

Base on the results of the tests performed in Exercise 1 – 3, which of the following is the best conclusion
i. We can conclude that the median number of species increases as the solids retention time increases from 3 to 12 and from 12 to 30 days
ii. We cannot conclude that the median number of species increases as the solids retentions time increases.
iii. We conclude that the median number of species increases as the solids retention time increases from 123 to 30 days but it may not increases as the retention time increase from 3 to 12 days.


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  • CreatedOctober 05, 2015
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