Imperial measurements are a system of measure. Today, in the UK, we more commonly use metric measures; however, we still use some imperial measures. There are many different imperial measurements for ...

All kinds of parameters can be described using complex numbers of the form real + j * imaginary. The numerical values of real and imaginary can vary over very wide ranges. Trying to graph them ...

Montgomery (1996) points out that a moving range chart should be interpreted with care because "the moving ranges are correlated, and this correlation may often induce a pattern or runs or cycles on ...