通过实例论述了关于均值的原假设H0:a≤a0(a≥a0)仅进行单边检验的局限性——只给出单边拒绝域是不合理的。首次给出对H0:a≤a0(a≥a0)进行双边检验的方法及双边拒绝域,其结果有重要的应用价值。
The limitation of unilateral examination about average value original supposition uitl case is elabora-ted. It is only unreasonable to produce resistance area. The first time to method and bilateral resistance area of a0: a ≤a0(a ≥a0 )is produced. And its result has important prafical value.