Business, 14.07.2019 07:30 reganjones89

Suppose that, on average, electricians earn approximately µ = $54,000 per year in the united states. assume that the distribution for electricians' yearly earnings is normally distributed and that the standard deviation is σ = $12,000. what is the probability that the average salary of four randomly selected electricians is less than $50,000?

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Suppose that, on average, electricians earn approximately µ = $54,000 per year in the united states....

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