The usual process inspection scheme for controlling the standard deviation (S. D.) of a normal distribution is to plot a Shewhart chart on which are recorded the ranges of small samples; a common size ...

Using Microsoft Excel you can create charts based on the data and formulas entered in a worksheet. Enter a sample range of numbers in Excel as if you were at an event asking people their ages, for ...

Andriy Blokhin has 5+ years of professional experience in public accounting, personal investing, and as a senior auditor with Ernst & Young. It's possible to ...