This chapter is from the book ï. Using Mixed Cell References. A mixed cell reference is either an absolute column and relative row or absolute row and relative column. When you add the $ before the column letter you create an absolute column or before the row number you create an absolute row.
Six Sigma was popularized in the late 1990's and introduced into 3M by former CEO James McNerney, a former GE executive. It involves a set of process tools designed to eliminate production defects and wastage, and raise efficiency. The Six Sigma process killed innovation at 3M, said Nicholson.
What Is Six Sigma? Six Sigma is a business management strategy focused on the statistical optimization of business process. Used historically by large companies like Motorola and GE, Six Sigma follows a strict design and assessment process to improve the products, services and overall effectiveness of a company. The term âsigmaâ measures how far a process is from perfection. By flagging the defects in a process and finding solutions that eliminate the problem, a company in theory can achieve Six Sigma quality. Six Sigma quality is achieved when a process produces no more than 3.4 defects per million opportunities.