1 / 10

S519: Evaluation of Information Systems

This chapter introduces the concept of social statistics and its importance in organizing and interpreting data. It covers descriptive statistics, inferential statistics, and the use of Excel and Add-ins for data analysis. The chapter also highlights the benefits of learning statistics and includes examples of formulas and functions in Excel.

mandersen
Download Presentation

S519: Evaluation of Information Systems

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. S519: Evaluation of Information Systems Social Statistics Ch1: Introduction

  2. Social Statistics • Statistics describes a set of tools and techniques for describing, organizing and interpreting information or data. • Do we need statistics? When and Why?

  3. Descriptive statistics • Used to organize and describe the characteristics of a collection of data

  4. Descriptive statistics How can you describe this table?

  5. Inferential statistics • Make inferences from a smaller group of data to a possible larger one • Sample: a smaller group of data • Population: the whole group of a certain subject • What can you infer from above table?

  6. Excel and Add-in Lab • Excel 2003, 97 • Analysis ToolPak • Tools menu, click add-ins • In add-ins box, select the checkbox of analysis toolpak, click ok • Install it • Then you are done! • You see „data analysis“ under Data menu

  7. Why learn statistics • Always good to put some lines in your vita • It is an important way of analysing data • You need this for your evaluation

  8. Formula Lab How does it work in Excel?

  9. Function Lab • Sum() • =sum(3,4) • =sum(a2:a4) • =sum(a2:a4, 6) • =sum(a6:a8, 4)

  10. Example Lab • Students in 3 evaluations

More Related