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1	Some uncertainty was present in the class data for the [fast-mutating] E938 strain.
2	The standard deviations were high (30% and 40% respectively).
3	This may be attributable to problems while performing the serial dilution.
4	Groups may not have allowed for the proper dispersion of the bacteria in each solution before performing further dilutions.
5	This may result in initially lower concentrations of bacteria on some plates.
6	This can easily be remedied by allowing proper dispersion of the bacteria in each dilution step.
7	Despite the high standard deviation for the class E938 data, the experiment supported our hypothesis ...
8	... that E938 would show increased mutation due to the lack of a functional DNA repair mechanism.