Chapter 1 Quiz

Science of collecting, Organizing, analyzing, and interpreting data in order to make conclusions.

• Information that is collected
• i.e. measurements, counts, responses, and observations

All vs Some; sample is a subset of population

numerical description of a population characteristic

numerical description of a sample characteristic

summarizes and diplays the findings

conclusions based on descriptive statistics

labels, names, qualities, attributes

numerical measures and counts

Qualitative data; includes names, attributes, etc. No meaningful calculations can be made

Qualitative or Quantitative; can order or rank data; no meaningful calculations can be made

Quantitative data; zero is not an inherent zero, only a position on a scale. Meaningful differences can be found.

Quantitative data; zero is an inherent zero; values below zero wouldn't make sense to discuss.  Meaningful ratios and/or differences can be found.

collecting responses

observe; do not change any existing conditions

conditions are changed in some way, or treatment is applied.

those a part of the study don't know what group they are in.

individuals don't know what group they are in, and experimenter doesn't know either.  (however, someone does have to know)

used when it is too dangerous, costly, or impossible t use a different method.

no rules, just randomly pick a sample.

pick every nth individual/object to create sample

out of convenience, o to one location and collect information to use as sample

pick one or more subgroup, but not all and collect all info from the subgroup(s) to create the sample.

collect some info from all subgroups in order to create a sample.