SOCSCI 2J03 Lecture 2: SOCSCI2J03[Lec2] - Statistics and Types of Statistics

• School: McMaster University
• Department: Social Sciences
• Course: SOCSCI 2J03
• Professor: Rizwan Tahir

Document Summary

Opening example: are you an american, are you struggling, suffering, poll of 176,903 american adults aged 18 or older was conducted jan 2nd to dec 30 , 2014 as part of gallup-healthways well-being index survey. Another example: political voting, many polls seem to be inaccurate. Statistics: science of collecting, analyzing, presenting, & interpreting data and making decisions based on these analyses. Descriptive statistics: consist of methods for organizing, displaying, and describing data by using tables, graphs, and summary measures. Powerpoint week 1, slide 6 : these numbers describe total amounts spent by these companies, we aren"t drawing inferences, decisions, or predictions from data therefore descriptive statistics. Inferential statistics: utilizes sample data (collected data) to make estimates, decisions, predictions, or other generalizations about larger set of data: ex; uses 10 students in 2j03 to make an average gpa for the whole class.