科学技术研究报告.0277,矿用DF-100型电容式发爆器

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作者：煤炭部煤炭科学研究院抚顺研究所[著]

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ISBN：9780030141287

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简介

简介

New edition of a text in which Robert S. Witte (San Jose U.) and John S. Witte (Case Western Reserve U.) present a simple overview of descriptive and inferential statistics. Written with the intent to help students gain the confidence needed to use statistics in their everyday lives, the 26 chapters cover introductory material (definition of statistics, and two types of data and variables), organizing and summarizing data, and generalizing beyond data. Each chapter contains outlines, summaries, key terms, marginal definitions, and real-life exercises. Annotation c. Book News, Inc., Portland, OR (booknews.com)

Introduction
Descriptive Statistics
Describing Data with Tables and Graphs
Describing Data with Averages
Describing Variability
Standard Scores (z) and Normal Distributions
Describing Relationships: Correlation
Regression
Inferential Statistics
Populations, Samples, and Probability
Sampling Distribution of the Mean
Introduction to Hypothesis Testing: the z Test
More about Hypothesis Testing
Estimation (Confidence Intervals)
t Test for One Sample
t Test for Two Independent Samples
t Test for Two Related Samples (Repeated Measures)
Analysis of Variance (One Factor)
Analysis of Variance (Repeated Measures)
Analysis of Variance (Two Factors)
Chi-Square Test for Qualitative (Nominal) Data
Tests for Ranked (Ordinal) Data
Postscript: Which Test?
Appendices
Math Review
Answers to Selected Questions
Tables
Glossary
Index

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