You can read this data set by specifying it as a HISTORY= data set in the PROC SHEWHART statement, as follows: title 'Median Chart for Weights'; proc shewhart history=detsum lineprinter; mchart weight ...

The within-subgroup variability of the weights is known to be stable. You can use a median chart to determine whether the mean level of the weights is in control. The following statements create the ...

The median age of a first-time homebuyer has jumped from 28 years old in 1991 to 38 in 2024. When economic analysts talk about a cyclical change, they’re talking about short-term fluctuations ...