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 file ReturnAndEarn_2_years.xlsx. Download the Excel file and use Excel to undertake an appropriate hypothesis test to address the research question: Link excel: https://docs.google.com/spreadsheets/d/1oLHifO7RcfEXijzfo9UxuRLtFsyyhxT6/edit?usp=sharing&ouid=111812307667676091862&rtpof=true&sd=true

Research Question: "Is the average tonnes recycled per person by ACT residents differ between the 2020/2021 and 2021/2022 financial years?"

Figure 1: ACT 2020/2021 Figure 2: ACT 2021/2022 2 co CO Frequency Frequency O O 7000 8000 9000 11000 13000 7000 8000 9000 11000 13000 per-person tonnes per-person tonnes Figure 3: ACT 2020/2021-ACT 2021/2022 Figure 4: Recycling CO 13000 11000 Frequency per-person tonnes 9000 O 7000 -4000 -2000 0 1000 2000 3000 ACT 2020/2021 ACT 2021/2022 Differences in per person tonnes