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Updated: Jul 9, 2025

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中国Zunyi市的道路交通死亡率:10年 (2013-2022) 的数据分析

Tian-Jing Sun1, Xiao-Fei Huang1, Fang-Ke Xie1

  • 1Department of Emergency, Affiliated Hospital of Zunyi Medical University, Zunyi, 563003, Guizhou province, China.

Chinese journal of traumatology = Zhonghua chuang shang za zhi
|December 7, 2023
PubMed
概括

津地区的道路交通死亡人数有所下降,但弱势道路使用者和没有驾驶执照的司机仍然是关键问题. 有针对性的干预措施对于改善该地区道路安全至关重要.

关键词:
流行病学上的流行病学.道路交通安全问题 道路安全问题道路交通事故发生事故.弱势的道路使用者.

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相关概念视频

Testing a Claim about Mean: Known Population SD01:11

Testing a Claim about Mean: Known Population SD

A complete procedure of testing the hypothesis about a population mean is explained here.
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
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