http://leanblog.org/audio258

“ER wait times down, but only slightly” or ER wait times are virtually the same?

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 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