胡言乱语

摘要： Normality test A normality test is a statistical process used to determine if a sample or any group of data fits a standard normal distribution. A normality test can be performed mathematically or g... 阅读全文

摘要： Constructing Run Charts A run chart is a line graph that shows data points plotted in the order in which they occur. They are used to show trends and shifts in a process over time, variation over time... 阅读全文

摘要： Process Improving FlowChart 阅读全文

摘要： http://www.isixsigma.com/offsite.asp?A=Fr&Url=http://www.skymark.com/resources/tools/control_charts.htm Control Charts Every process varies. If you write your name ten times, your signatures will a... 阅读全文