how is 𝑆^2/𝑛 an unbiased estimator of the variance of the sample mean given that the 𝑥𝑖’s are independent
Added by Mel A.
Step 1
First, let's define the terms: - 𝑆^2 is the sample variance, calculated as the sum of squared differences between each data point (𝑥𝑖) and the sample mean (𝑥̄), divided by the degrees of freedom (𝑛-1). - 𝑛 is the sample size. - The variance of the sample Show more…
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