Fair Trade NZ have released some great new resources for schools.
While the work is pitched at CL 4 it could easily be extended into the higher levels. Like the resources writer I think that there is useful material for both Year 11 and 12 statistics particularly the statistical literacy standards 1.12 and 2.11 and questionnaire design 2.8.
A new suite of classroom resources are available to download with detailed lesson plans and catchy student hand outs.
Bananas: An interactive unit exploring the banana industry culminating in a student investigation into their local banana market. The pack contains a teacher introduction followed by detailed lesson plans and student resources. Achievement Objectives link to both Social Studies and Mathematics National Curriculum Level 4. This unit could be used as a base for Mathematics and Statistics Achievement Standard 2.8: Design a Questionnaire and 2.11: Evaluate a statistically based report.