A random sample of size 100 is drawn from a population having mean 20 and variance 25. The standard deviation of sample mean is Select one: 0.5 0.25 5 1.5
Added by Stephen S.
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We are given the population mean (μ) as 20 and the population variance (σ^2) as 25. We need to find the standard deviation of the sample mean. Show more…
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