Statistics for Business
It is the range of sample means, calculated by subtracting the smallest from the largest.
It is the mean of multiple sample means, calculated as xˉˉ=∑xˉk\(\bm{x̄̄}\)=\(\frac{\sum\bar{x}\)}{k}.
It is the mean of all individual data points across all samples, calculated as xˉˉ=∑nx\(\bm{x̄̄}\)=\(\frac{\sum n}{x}\).
It is the median of all sample means, found by ordering them and selecting the middle value.