They have the same average but mean something very different when you are planning your rent or mortgage payments. Situations ...
The larger the sample size, the greater the proportional effect will be on the overall estimate of the standard deviation. Here is the generalized formula for it: The formula for pooled standard ...
The subgroup sample sizes vary between 3 and 7. data wire; input day size @; informat day date7.; format day date7.; do i=1 to size; input brstr @@; output; end; drop i size; label brstr ='Breaking ...