This article was sent by a friend and blog reader from Winnipeg the other day:

“ER wait times down, but only slightly”
Oh good, the waiting times are down. But what does “only slightly” mean? Have ER wait times gone down in a meaningful way? Or are they just comparing two data points? Is this “down” a matter a signal or is it just noise in the system?

These are the types of questions that can be answered by methods in my new book Measures of Success: React Less, Lead Better, Improve More.