Acme Tricycles wants to assemble the tricycles more efficiently.  Given below are the mean and standard deviation for the assembly times for each method.  Method A:                mean = 15 minutes           standard deviation = 6 minutes  Method B:                mean = 17 minutes           standard deviation = 3 minutes  Method C:                mean = 20 minutes           standard deviation = 4 minutes   9)  Which method takes the least amount of time on average?                                      10)  Which method has the most consistent assembly times?

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