Question: The average work week for engineers in a start-up companyis believed to be about 60 hours. A newly hired engineer hopesthat it's shorter. She asks

The average work week for engineers in a start-up companyis believed to be about 60 hours. A newly hired engineer hopesthat it's shorter. She asks 10 engineering friends in start-upsfor the lengths of their average work weeks. The average is 75hours, with a standard deviation of 7.15 hours. Based on the data,

test her claim that the average work week is shorter than 60hours. Use=0.05.

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