ISDS Test 1 Study Guide

ISDS Test 1 Study Guide - Definitions Chapter 1 Qualitative...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Definitions Chapter 1 Qualitative Variable – categorical (ex. Yes/No, Fr./Soph./ Jr./Sr.) Quantitative – numerical, how much (ex. Weight, age, GPA) Cross-sectional data – data collected at the same point in time Time series data – data collected over several periods of time Descriptive statistics – methods involving the collection, presentation, and summarizing of a set of data in order to describe the features of the data set Inferential Statistics – methods that make possible the estimation of a characteristic of a population or making a decision about a population based only upon sample results Population – the set of all items in a particular study (the whole group) Sample – subset of the population selected for analysis (part of the whole group) Parameter – a summary measure that is computed to describe a characteristic of an entire population (describes the whole group) Statistic – a summary measure that is computed to describe a characteristic from only a sample of the population (describes the sample
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/15/2008 for the course ISDS 2000 taught by Professor Nunnery during the Spring '08 term at LSU.

Page1 / 3

ISDS Test 1 Study Guide - Definitions Chapter 1 Qualitative...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online