SlideServe
Télécharger Obtenir Pro
Menu
Accueil Pro
Préférences
ApparenceLight Aide et commentaires
© SlideServe · v2026

Green / Blue Sheets

cahil avatar
cahil
74 diapositives · 906 Views · Jul 09, 2014

This guide explores the fundamental differences between qualitative and quantitative data, delving into various types of variables such as nominal, ordinal, interval, and ratio. It provides real-world examples, including personal metrics like smoking status and SAT scores, to help clarify the concepts. We also discuss methods for sampling, distinguishing between random and non-random samples, and their implications for statistical inference. Learn how to graph qualitative variables and interpret data effectively through this informative resource.

#green / blue sheets #green / blue sheets ppt #powerpoint #presentation
Green / Blue Sheets - slide 1
01 / 74Green / Blue Sheets
1 / 17

Télécharger la présentation

Green / Blue Sheets
Une image / un lien ci-dessous est fourni (tel quel) pour télécharger la présentation

Politique de téléchargement : le contenu du site vous est fourni TEL QUEL pour votre information et votre usage personnel ; il ne peut être vendu, concédé sous licence ni partagé sur d’autres sites sans l’accord de son auteur.Le contenu vous est fourni TEL QUEL, pour votre information et votre usage personnel uniquement. Téléchargez la présentation en cliquant sur ce lien. Lors du téléchargement, si vous ne parvenez pas à télécharger une présentation, l’éditeur a peut-être supprimé le fichier de son serveur.Pendant le téléchargement, si vous ne parvenez pas à obtenir une présentation, le fichier a peut-être été supprimé par l’éditeur.

F I N

Plus de contenu associé

Transcription de la présentation

  1. Green/Blue Sheets Data set: Big stack Elements: Each Person Variable: Each Question Observation: Each Sheet

  2. Qualitative vsQuantitative Variables

  3. Qualitative Quantitative Nominal Ordinal Interval Ratio

  4. Nominal

  5. Ordinal

  6. Interval

  7. Ratio

  8. Qualitative or Quantitative? • Nominal, Ordinal, Interval or Ratio? • Your smoking status • Your SAT score • How many votes Obama received in last election • Ounces of beef in your hamburger • Favorite color • Number of red M&M’s you have in your bag • Type of M&M’s with the most red ones

  9. Cross Sectional data Time Series Data

  10. Time series or Cross Sectional? Example 13.7 Current GPA of all students vs. Your GPA for each semester you’ve been at Purdue TA eval scores of all classes taught vs. Eval scores of all TAs from the last exam Salary of LA Lakers throughout 1990’s vs Salaries of all NBA teams in 1994

  11. Sample Population

  12. Statistical Inference

  13. Voter registration records show that 68% of all voters in Indianapolis are registered as Republicans. To test a random digit dialing device, you use the device to call 150 randomly chosen residential telephones in Indianapolis. Of the registered voters contacted, 73% are registered Republicans.

  14. How To Sample?

  15. Voluntary Response

  16. Convenience Sample

  17. Non-Random Sample NOT Hard NOT Random NOT The best Random Sample IS Harder IS Random IS The best

  18. Types Of Random Samples

  19. Simple Random Sample

  20. Stratified Random Sample Stratified Random Sample

  21. Cluster Sample

  22. Systematic Sampling

  23. Bias

  24. Variability

  25. Bias Low High Variability High Low

  26. Reduce Bias Random Sampling Reduce Variation Larger Sample

  27. Biased Questions

  28. Do you always wash your hands after Using a public restroom?

  29. What color shirt were you wearing March 23rd 2008?

  30. 520 baby seals are killed every year due to excessive drilling in Alaska, Would you vote ‘No’ to excessive drilling And help save these adorable seals?

  31. Survey

  32. Question 1: Buying a ticket if:

  33. Question 2: Is this surprising?

  34. Question 3: Which Plan Would You Choose?

  35. Graphing Qualitative Variables

  36. Data Tables

  37. In a poll of 200 parents of children ages 6 to 12, respondents were asked to name the most disgusting things ever found in their children’s rooms. The results are below (J&C 2005)

  38. Bar Graph Pie Chart