Question: Theoperating costs for each machine for one dayhave an unknown distribution with mean1610and standard deviation136dollars. A sample, with sizen=45, was randomly drawn from the population.

Theoperating costs for each machine for one dayhave an unknown distribution with mean1610and standard deviation136dollars. A sample, with sizen=45, was randomly drawn from the population. Using the Central Limit Theorem for Means, what is the standard deviation for the sample mean distribution?

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