1 / 17

12 Stats

12 Stats. Statistics is a body of methods for making wise decisions in the face of uncertainty. W. Allen Wallis.

tamasine-mitsuyama
Download Presentation

12 Stats

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. 12 Stats Statistics is a body of methods for making wise decisions in the face of uncertainty. W. Allen Wallis

  2. This course has been designed forstudents who wish to keep their career options open by studying mathematics at Level 2, for whom the regular course in mathematics is not appropriate. Successful completion of the course provides eligibility for continuing with a Statistics and Modelling course in year 13. WHY TAKE STATISTICS? We live a world that is filled with uncertainty and variability. The field of statistics exists because of this. Statistical methods allow us to gain information and control because we can use them to measure variability and find predictable patterns in the presence of uncertainty. Here are some reasons why statistical methods are popular and useful: As individuals to help us make personal decisions about things like What to eat to remain healthy How to enhance our children’s well-being Which treatment to undergo in a medical situation How to invest our time to enhance our enjoyment of life As a society we want to have some control over Reducing rates of cancer, heart attack, diabetes and other diseases Growing better plants (pest resistant, high yield, etc) Determining public education strategies to reduce the incidence of HIV Deciding on road safety measures to reduce to road toll As intelligent and curious beings we want to understand things like Psychic abilities – are they real? Are left-handed people better at mathematics? Does listening to classical music enhance our intelligence? Do male and female brains work differently? As social and curious beings we want to know about other people Who are they planning to vote for at the next election? What TV programmes are they watching? How much alcohol do they drink? How much exercise do they take? 12 Statistics

  3. Continuing with Statistics • A few of the students (about 2 or 3) who successfully complete the course go on to take the full 24 credit Stats and Modelling course that includes external assessment. • About 40% of them continue with an internally assessed course in Stats (see later for details).

  4. Use of technology There is a strong technology component. Technology is used for assessment. Skills are developed with • Excel • Fathom. • Casio Power Graphic fx-9750GPLUS

  5. Content overview • Surveys and Questionnaires • Display of Data • Sampling • Probability • Bi-variate Data or Time SeriesInvestigation • Sequences and Series • Calculus • Some elements of statistical literacy

  6. NCEA • This course is entirely internally assessed and provides access to a maximum of 17 Level 2 credits.

  7. Standards offered

  8. Processes In addition students who achieve all students using a high level of communication will be eligible to enter Unit Standard 5243 Apply mathematical processes and skills in problems 7 Credits

  9. Questionnaires Unit Standard 12333: 3 Credits Demonstrate understanding of, and use Questionnaire design demonstrate understanding of questionnaire design, and design and trial a questionnaire for a given purpose.

  10. Compare Data Sets • Display of data • Box plot, (composite) bar graphs • Measures • Mean, median • Standard deviation, inter-quartile range • Comparison • Discuss symmetry • unusual values • compare box plots

  11. Investigation Using time series or Bi-variate data • Writing a question • Construction of a scatterplot • Describe trend • Insert a linear trend line • Make a prediction

  12. Scatterplot of Final Mark v Coursework for Psychology 1

  13. Sequences and Series • Taught and assessed using Excel

  14. 13 internally assessed statistics • Achievement Objectives • To give access to mathematics for students who wish to keep their career options open by studying mathematics at Level 3 for whom the regular course in mathematics is not appropriate • To develop skills and understanding in the application of statistics and modelling. • To use technology as an aid to solve problems involving the analyses of data. • This course has “approved subject” status.

  15. Assessment for qualifications

  16. The quiet statisticians have changed our world-not by discovering new facts or technical developments but by changing the ways that we reason, experiments and form our opinions Ian Hacking (Science 1984)

More Related