Multiple Choice
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. Given a sample of four electricians, what is the standard deviation for the sampling distribution of the sample mean?
A) 6,000
B) 12,000
C) 36,000
D) 54,000
Correct Answer:
Verified
Correct Answer:
Verified
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