Descriptive Statistics
Descriptive Statistics include:
The Mean- measure of central tendency.
The Range- difference between largest/smallest observations in a set of data.
Standard Deviation measures the amount of data dispersion around mean.
*Distribution of Data shape
.Normal or bell shaped or
.Skewedn
Statistical Process Control (SPC)
It involve inspecting a random sample of the output from a process and deciding whether a process is producing product with characteristics that fall with in a free determined range.
