NUR 80A/B Lecture Notes - Lecture 5: Statistical Inference, Descriptive Statistics, Univariate
14 Mar 2020
School
Department
Course
Professor
Document Summary
Describe the data and making sense of it synthesize organize discern general trends. Therefore, they are procedures used for describing, organizing, and interpreting information (data) Conclusions can never be made with descriptive statistics; however inferential can ( use of null hypothesis) A set of data can be completely described in terms of: measures of central tendency, measures of variability, frequency distributions, shapes of distributions. Seek a single number that best represents a distribution of data values. Typicalness comes from centre of a distribution not from either extreme. Called measures of central tendency or averages. Averages; represents the distribution of the data. Each provides a different type of information about distribution of scores. Used primarily to describe typical values of categorical level data i. e. nominal (types of religion, names of schools, favourite sports) Also used to describe ordinal, interval, and ratio data. More than one number appears with equal frequency = multimodal.
