The formal inference standard AS 3.10 is the culmination for students of their high school sample to population inference journey which started at Year 9.
Students are expected to:
- Research into a familiar context and link what they see throughout the PPDAC cycle to this research (the “so-what?” factor)
- Integrate informed contextual knowledge throughout the PPDAC cycle.
- Use re-sampling methods (bootstrap confidence intervals) as their analysis tool to answer their investigative question (looking at the difference in means or medians)
- Write a report that looks more like a research report rather than an assessment-style write-up, with meaning and interpretation of the resulting statistical findings evident throughout.
The following documents are important background reading for teachers developing students informal inferential reasoning at all levels
- “Ways of obtaining confidence intervals” a short discussion of bootstrapping versus formulae.
- “Confidence intervals – What matters most” a more comprehensive discussion on the range of understandings to be conveyed about confidence intervals in general and bootstrap confidence intervals in particular.
- Inference progressions across the senior curriculum.
Also see links to the senior secondary guides guided by the Curriculum AOs. These provide teachers with possible context elaborations.
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