7 statistical tools and statistical analysis behind the now many companies are still in hand the state statistical work, very original! Even if the computer is only used to reduce the workload to do some of the summary, the calculation of indicators, it did not really make use of advanced computer technology and network technology is also limited by the statistical analysis after analysis, that is simple to explain the statistical data shows that not use of network technology to implement information sharing methods such as analysis and forecasting in advance in other words, 'statistical forecasting' did not play a role in this function, the lack of information collection, comprehensive and systematic.