1 / 13

Section 1-5

Section 1-5. Uses and Misuses of Statistics. There are three types of lies ----- lies, damn lies and statistics. Statistics…can’t get any respect?. Torture numbers, and they'll confess to anything. ~Gregg Easterbrook Statistics can be made to prove anything - even the truth. ~Author Unknown

wolfe
Download Presentation

Section 1-5

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. Section 1-5 Uses and Misuses of Statistics

  2. There are three types of lies ----- lies, damn lies and statistics

  3. Statistics…can’t get any respect? • Torture numbers, and they'll confess to anything. ~Gregg Easterbrook • Statistics can be made to prove anything - even the truth. ~Author Unknown • He uses statistics as a drunken man uses lampposts - for support rather than for illumination.  ~Andrew Lang • There are two kinds of statistics, the kind you look up and the kind you make up.  ~Rex Stout, Death of a Doxy

  4. Death in Iraq

  5. Death in Iraq

  6. Claim: • 80% of all Resumes are Misleading – • Source Xukor, Inc. complied from a survey of 10,000 applications and resumes combined

  7. Are Resumes misleading: MOST FREQUENT AREAS WHERE THEY ARE MISLEADING

  8. 1-5 Uses and Misuses of Statistics • Suspect Samples • Is the sample large enough? • How was the sample selected? • Is the sample representative of the population? • Ambiguous Averages • What particular measure of average was used and why? Bluman Chapter 1

  9. 1-5 Uses and Misuses of Statistics • Changing the Subject • Are different values used to represent the same data? • Detached Statistics • One third fewer calories…….than what? • Implied Connections • Studies suggest that some people may understand what this statement means. Bluman Chapter 1

  10. 1-5 Uses and Misuses of Statistics • Misleading Graphs • Are the scales for the x-axis and y-axis appropriate for the data? • Faulty Survey Questions • Do you feel that statistics teachers should be paid higher salaries? • Do you favor increasing tuition so that colleges can pay statistics teachers higher salaries? Bluman Chapter 1

  11. Homework Read Do Review Exercises on page 26 #1- 28 allany of them that are not already assigned. • Sec 1.5 and know the important terms. Extra Credit Opportunity: If you do any activity to observe Veteran’s Day, let me know and I will give you extra credit. Bluman Chapter 1

More Related