Statistical Sciences 2244A/B Chapter Notes - Chapter 1: Block Design, Blind Experiment, Simple Random Sample

• School: Western University
• Department: Statistical Sciences
• Course: Statistical Sciences 2244A/B
• Professor: Jennifer Waugh

Document Summary

Data are observations (such as measurements, genders, survey responses) that have been. Statistics is a collection of methods for planning experiments, obtaining data, and then organizing, summarizing, analyzing, interpreting, presenting, and drawing conclusions based on the data. A population is the complete collection of all elements (scores, people, measurements, and so on) to be studied; collection is complete in the sense that it includes all subjects to be studied. Census is collection of data from every member of population. Sample is subcollection of members selected from part of population. Must be collected in appropriate ways; if it isn"t, data may be completely useless. Parameter is measurement describing some characteristics of populations. Statistic is measurement describing some characteristic of sample. Quantitative data consists of numbers representing counts or measurements. Discrete data: number of possible values either finite number or countable number. Continuous data: infinitely many possible values that correspond to some continuous scale that covers a range of values w/o gaps.