
194 Quality management for organizations using Lean Six Sigma techniques
Statistic: The term statistic is the numerical summary measure used to describe the
sample characteristics. The equivalent sample characteristics: sample mean (
), sample
variance (s
2
), and sample count (n).
Data: The term data refers to information that is being observed or collected. The
data are broadly classied into two main categories: variable data and attribute data. The
variable data come from measurement characteristics such as length, width, and weight.
Examples of variable data include 5′11″, 230 lbs, and 500 cft. Attribute data come from
inspection characteri ...