均值差异性比较试验次数的确定方法  

Computation of repeat number of tests comparing mean difference

作　　者：黄必恒[1] 管宇[1] 吴志松[1] 

机构地区：[1]浙江林学院理学院,浙江临安311300

出　　处：《浙江林学院学报》2005年第1期119-122,共4页Journal of Zhejiang Forestry College

摘　　要：确定适宜的试验重复次数一直是野外试验关注的问题。利用计算机摸拟试验,从控制犯第二类错误的概率来研究两总体均值比较试验时的重复次数问题,求得在已知历史资料情况下样本容量的计算公式。建议初次试验组内重复次数不宜少于10次。Determining the optimum repeat number is always a great concern of field test. The computer stochastic simulation test was used to study repeat number for controlling the probability of Type Ⅱ errors and establish a formula calculating sample size in the case of known historical data.And repeat number in one section in first test had better more than 10.

关 键 词：均值差异性比较 试验设计 重复次数 

分 类 号：S114[农业科学—农业基础科学]