The average work week for engineers in a start-up company is believed to be about 60...

The average work week for engineers in a start-up company is believed to be about 60 hours. A newly hired engineer hopes that its shorter. She asks 10 engineering friends in start-ups for the lengths of their average work weeks. The average is 75 hours, with a standard deviation of 7.15 hours. Based on the data, test her claim that the average work week is shorter than 60 hours. Use α = 0.05

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The average work week for engineers in a start-up company is believed to be about 60...

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