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Do the armspan lengths of 12-year-old NZ boys tend to be bigger than the armspan lengths of 12-year-old NZ girls?  The focus of this lesson is on comparing two samples and making an inference about populations from samples.  Students’ previous work on boxplots and work on sampling ideas are combined in this activity.


Achievement Objectives

  • Level 5
    • S5-1Plan and conduct surveys and experiments using the statistical enquiry cycle
      • B considering sources of variation
      • C gathering and cleaning data
      • D using multiple displays, and re-categorising data to find patterns, variations, relationships, and trends in multivariate data sets
  • Level 6
    • S6-1Plan and conduct investigations using the statistical enquiry cycle
      • D making informal inferences about populations from sample data

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