QMS 102 Study Guide - Quiz Guide: Pareto Chart, Cumulative Frequency Analysis, Bar Chart
6 Feb 2019
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Descriptive statistics: focuses on collecting, summarizing, presenting, and analyzing a set of data. Inferential statistics: uses data that have been collected from a small group to draw conclusions about a larger group. Parameter: a numerical measure that describes a characteristics of a population (whole) Statistic: a numerical measure that describes a characteristics of a sample (portion) Census: a set of data that includes all members of whole. Primary data: raw data collected directly; secondary data: collected by another party. Quantitative discrete (values come from specific values) *counted* and continuous (numeric data that can take on values at every point in an interval *measured* Quantitative interval (have unit of measurement; zero is reference point) and ratio (zero is important, meaning absence) Qualitative nominal (no particular order/ranking) and ordinal (has natural order to the category) *move from high scale to low scale to avoid too personal of a question*
