Business – 3.2 Market research – Market research data | e-Consult
3.2 Market research – Market research data (1 questions)
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Calculations
- Mean = (120+135+150+150+130+115+140+125) ÷ 8 = 1,065 ÷ 8 = 133.13 units
- Ordered data: 115, 120, 125, 130, 135, 140, 150, 150
- Median = average of 4th and 5th values = (130 + 135) ÷ 2 = 132.5 units
- Mode = value occurring most frequently = 150 units
Interpretation
- The mean (133.13) is slightly higher than the median (132.5), indicating a modest positive skew caused by the two high weeks (150 units).
- The mode of 150 shows that the peak sales level occurred twice, suggesting occasional strong performance periods.
- Overall, sales are relatively stable around 130‑140 units, but the retailer should investigate why weeks 3 and 4 reached the peak and why weeks 1 and 6 were lower, to replicate successful factors and address weaknesses.