摘要
本文介绍了MATLAB软件的normfit()函数在求解正态总体参数的区间估计中的长处和短处,结合实例编写了MATLAB程序求解标准差σ已知时均值μ的置信区间和均值μ已知时标准差σ的置信区间,弥补了normfit()函数在该方面的不足.
This article introduces the advantages and disadvantages of Normfit() function solution to interval estimation of normal population parmneter in software MATLAB. With examples, the author has written a MATLAB program to solve the confidence interval of: 1 ) the expectation μ when the standard deviation σ is known; and 2) the standard deviation σ when the expectation μ is known, which makes up the deficiency of Normfit() function.
出处
《吉林师范大学学报(自然科学版)》
2010年第1期76-78,共3页
Journal of Jilin Normal University:Natural Science Edition
关键词
正态总体
均值
标准差
置信区间
normal population
expectation
standard deviation
confidence interval