C
Cheese
I'm having trouble posting in Env. section, so I will try here.
Problem is from 6-min solutions - Environmental #54
Question involves finding MPN
I have tried to solve this problem using the appendix for MPN tables from Metcalf-Eddy.
I get 140/100ml (using 5,3,2 positives) - which is exactly answer c. The solution uses some formula I haven't seen and gets solution D.
The hint says to use 'easiest method to approximate' - I would consider the tables the easiest method
Am I doing something incorrectly here?
Would the exam have answer choices in such a tight grouping.
Thanks,
Cheese
Problem is from 6-min solutions - Environmental #54
Question involves finding MPN
I have tried to solve this problem using the appendix for MPN tables from Metcalf-Eddy.
I get 140/100ml (using 5,3,2 positives) - which is exactly answer c. The solution uses some formula I haven't seen and gets solution D.
The hint says to use 'easiest method to approximate' - I would consider the tables the easiest method
Am I doing something incorrectly here?
Would the exam have answer choices in such a tight grouping.
Thanks,
Cheese