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STATS

unit one

TermDefinition
parameter number to describe the whole population
population everything
inferential statistics when a statistic is used to predict the parameter
sample small part of population
statistic number to describe the sample
qualitative data consists of attributes, labels, or nonnumerical entries
quantitative data consists of numerical measurements, or counts
Nominal level categorized with names, labels, qualities. No mathematical computations can be made at this level
ordinal level can be arranged in order/ or ranked, but differences between data entries are not meaningful
interval level ordered, meaningful differences between data entries can be calculated. A zero entry represents a position on a scale; entry is not an inherent zero.
ratio level the property that a zero entry is an inherent zero. A ration of two data entries can be formed so that one data can be meaningfully expressed as a multiple of another.
observational watch and measure/record characteristics of interest. The researcher does not influence the responses.
experimental actively trying to see a change with some "treatment"
Created by: avagracehoneyman
 

 



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