面向分析化学教学的数理统计软件的开发和应用

针对分析化学教材中统计数值表不够全面、抽象难懂的不足,开发了基于Matlab和Android平台的数理统计软件。该软件具有简洁的界面、直观的图像和自然的人机交互等优点,提供数理统计应用中的概率计算和统计检验所需的临界值,分布类型包括正态分布、t分布、X²分布和F分布。该软件旨在辅助分析化学师生提高解题效率,从而将学习重点集中在数理统计知识的深入理解和结果的合理阐释;也为此后专业统计软件的使用提供平稳过渡。本文介绍了该软件的主要特点,结合例题详细说明了软件的使用方法。

Developing a Software Package for Statistical Applications in the Course of Chemical Analysis

A statistical software package is developed for the course of chemical analysis. The software calculates cumulative distribution functions and inverse cumulative distribution functions of normal, t, χ², and F distributions; it also provides critical values for tests of statistical significance. The software is designed to substitute for traditional data tables that are insufficient and obscure. Statistical problems can be solved more efficiently with the software than with traditional data tables, which enables students to focus on understanding statistical principles and interpreting results. The software provides information through an intuitive interface, a graph, and natural interactions. Both Matlab and Android versions are presented, and free of charge.