水利调查误差衡量和调查容量的确定

DETERMINATION ON ERROR-MEASURE IN WATER CONSEEVANCY INVESTIGATION AND INVESTIGATION-CONTENT

如何衡量调查收集资料的可信度，计算抽样调查的误差及其精度，是一个值得研究的问题。本文就水利抽样调查误差计算和精度要求，确定调查容量问题进行了探讨，并给出了相应的计算公式。

It was a problen to be worth researching how to measure the reliability of materials collecting after investigation and how to calculate the error and percision of sampling investigation. The paper inquired into some problens about calculating error and precision in water comservancy sampling investigation and determing investigation-content, and gave a corresponding formual for calculating.