In Australia, recycling is essential to address UN SDG Goal 12: Ensuring sustainable consumption and production patterns. Exchange for Change coordinates with ACT's Return and Earn container deposit scheme, making recycling easy for consumers, beverage suppliers, and the waste industry.

A random sample of the same households' data on per person tonnes of recycling from ACT for the 2020/2021 and 2021/2022 financial years is stored in an Excel fileReturnAndEarn_2_years.xlsx. Download the Excel file and use Excel to undertake an appropriate hypothesis test to address the research question:

Figure 1: ACT 2020/2021 Figure 2: ACT 2021/2022 Frequency Frequency LO LO O O 6000 8000 10000 12000 14000 6000 8000 10000 12000 14000 per-person tonnes per-person tonnes Figure 3: ACT 2020/2021- ACT 2021/2022 Figure 4: Recycling 14000 CO Frequency per-person tonnes 6000 8000 10000 O -4000 -2000 0 2000 4000 ACT 2020/2021 ACT 2021/2022 Differences in per person tonnes