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Mathematics, 29.11.2019 07:31 kitam2871
The number of years of education of self-employed individuals in the united states has a population mean of 13.6 years and a population 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 x-bar (the sample mean)? 3.0 years 0.3 years 13.6 years
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