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morpeh [17]
3 years ago
9

He number of years of education of self-employed individuals in the united states has a population mean of 13.6 years and a popu

lation standard deviation of 3.0 years. if we survey a random sample of 100 self-employed people to determine the average number of years of education for the sample, what is the standard deviation of the sampling distribution of (the sample mean)
Mathematics
1 answer:
hodyreva [135]3 years ago
6 0

We can solve this problem by using the formula:

s = σ / sqrt(n)

where,

s = standard deviation of the sample

σ = standard deviation of the population = 3 years

n = number of samples = 100

Substituting:

s = 3 years / sqrt (100)

s = 0.3 years                       (ANSWER)

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