Answer to Question #342723 in Statistics and Probability for arvin

Statistics and Probability

Question #342723

what do you think the variance of the sampling distribution of the sample mean with a population variance of 200 and a sample size of 20

Expert's answer

"Var(\\bar{X})=\\sigma_{\\bar{X}}^2=\\dfrac{\\sigma^2}{n}=\\dfrac{200}{20}=10"

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