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讨论了在体育研究中抽样调查及检验方面的问题，特别是随机抽样中样本含量的确定问题，结合实例，指出正确的处理方法，并对统计模型的正确选用作了介绍。
The problems of sampling investigation and testing in sports research are discussed. In particular, the determination of sample content in random sampling is discussed. The correct method is pointed out by combining examples. The correct selection of statistical models is also introduced.