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A survey of 64 factory employees concluded that the average time of duration of a job in the same era of 6.5 years, with a

A survey of 64 factory employees concluded that the average time of duration of a job in the same era of 6.5 years, with a standard deviation of 4. Does this information serve to accept, with a significance level of 0.1, that the time average employment in this factory is greater than 6?

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