ExpertMedium2 marksExtended Response
AQA GCSE · Question 17.3 · Interpreting Results and Evaluating Findings
Between Jan 2010 and May 2018, the index for private sector pay rose from 100 to 118. The index for public sector pay rose from 100 to 112.
Compare the changes in public sector and private sector pay between Jan 2010 and May 2018.
Between Jan 2010 and May 2018, the index for private sector pay rose from 100 to 118. The index for public sector pay rose from 100 to 112.
Compare the changes in public sector and private sector pay between Jan 2010 and May 2018.
How to approach this question
1. State the overall trend for both sectors (did pay increase or decrease?).
2. Calculate the percentage increase for each sector (the increase is just the index value minus 100).
3. Make a comparison: which sector saw a larger increase?
Full Answer
Both private and public sector pay increased over the period. However, private sector pay increased by a larger amount (18%) compared to public sector pay (12%).
To compare the changes, we look at the percentage increase for each sector from the base value of 100 in Jan 2010.
- **Private Sector:** The index rose from 100 to 118. This represents an 18% increase in pay.
- **Public Sector:** The index rose from 100 to 112. This represents a 12% increase in pay.
**Comparison:**
Both sectors saw an increase in pay over the eight-year period. However, the growth in pay was greater in the private sector. Private sector pay grew by 18%, while public sector pay grew by a smaller amount, 12%.
Common mistakes
✗ Only describing one sector.
✗ Just stating the final index values without making a comparison.
✗ Stating that public sector pay increased more.
Practice the full AQA GCSE Statistics Foundation Tier Paper 1
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