大窑遗址二道沟地点石制品研究的抽样方法设计

结合简单随机抽样、整群抽样和连续重复抽样的特点,基于中心极限定理,本文设计了适用于大批量石制品抽样调查的具体方案,通过边抽样、边评价的方式,利用有限的样本量推断总体特征,并将其实际应用到大窑遗址二道沟地点石制品的研究中,取得了良好的效果。此外,该抽样方案对于石制品的物源追溯、遗址区域调查等也有一定的实用价值。

Sample Method for Studying a Large Number of Stone Artifacts Based on Lithic Materials of the Dayao Site

In combination with the features of simple random sampling, cluster sampling and continuous repeated sampling, this paper designs specific program of sampling research which can be used to study large number of stone artifacts. By sampling and assessing at the same time, we can deduct the whole picture using limited samples. The article uses this method on the research of the stone artifacts of the Dayao site and has got some success. Specific procedures are as follows. First, divide the overall into several independent groups with the cluster sampling method and make every group be numbered. Second, use simple random sampling method to select a random group and get the results of the statistical analysis. Then, select another group in the remaining randomly. Accumulate the group with the first group and make statistical analysis. And so on, repeating to sampling statistics stabilized. The sampling and evaluation of samples simultaneously in this sampling method, not only to control the sample size, but also to verify the statistical reliability of the results. Besides, this sampling method can also help to trace the source of the stone artifacts as well as the study of comparison of areas where different stone industries distribute.