Resources by J. Horring - ÷ÈÓ°Ö±²¥ Thu, 04 Jul 2024 23:39:45 +0000 en-US hourly 1 Armspans /resource/armspans/ Fri, 03 Aug 2012 02:58:27 +0000 http://new.censusatschool.org.nz/?post_type=resource&p=10 Do the armspan lengths of 12-year-old NZ boys tend to be bigger than the armspan lengths of 12-year-old NZ girls?

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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.

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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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]]> Rumbling Tummy /resource/rumbling-tummy/ Mon, 14 Feb 2011 00:03:47 +0000 http://new.censusatschool.org.nz/?post_type=resource&p=162 Where do teenagers get their lunch from? An investigation that samples from Census at School data highlighting the effects of sample size and sampling variability.

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]]> How can Jackson make a more accurate survey so that he can find out where New Zealand school students get their lunch from?  The focus of this lesson is to determine how sample size influences the accuracy of a survey. Students will take random samples of various sizes using the Random Sampler tool on the CensusAtSchool website. They will compare the results of these samples with the overall population statistics.

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Level 4

Achievement Objectives

  • Level 4
    • S4-1Plan and conduct investigations using the statistical enquiry cycle
      • A determining appropriate variables and data collection methods

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