Home / Standards / GB/T 4889-2008 GB/T 4889-2008 Active Statistical interpretation of data - Techniques of estimation and tests relating to means and variances 数据的统计处理和解释 正态分布均值和方差的估计与检验 Standard Type GBT ICS 03.120.30 CCS A41 Status 现行 Issue Date 2008-07-28 Implementation 2009-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委