Question: From past data the average time to assemble an electronic component is 14 min, assume that the assembly time is normally distributed with a standard

From past data the average time to assemble an electronic component is 14 min, assume that the assembly time is normally distributed with a standard deviation 3.4 minutes. The supervisor wants to determine if employee experience has altered the assembly time. A sample of 12 components was taken and it was found that the average time for completion is 11.6 minutes. Set up an appropriate test, using a significance level of a = 0.05 based on this information

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