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Evaluating Statistical Reports · Part 5 of 5
6 exam-style questions with model answers, plus 8 quick multi-choice questions — every question on this part of the standard, grouped by the 2 pages of notes they come from.
Write a full answer before you reveal the model one. That comparison is where the learning happens.
A bar chart comparing four values (81, 83, 84, 87) uses a vertical axis starting at 80. Explain the effect this has on the reader.
A report states: 'Auckland recorded 4 200 burglaries last year, compared with 380 in Nelson. Auckland is more than ten times as dangerous.' Auckland's population is about 1 700 000 and Nelson's about 55 000. Evaluate the claim.
A property website reports: 'The average house price in our region rose from $780 000 to $845 000 this year, an increase of 8.3%. Our graph, with the vertical axis from $770 000 to $850 000, shows the dramatic climb. Now is the time to buy before prices rise further.' Assess this report.
State the three moves that make up a complete evaluative point, and what each contributes.
A report states: 'We interviewed 200 people at three shopping centres on a weekday afternoon. 64% said they would use a new express bus service. Demand is strong, so the service should be introduced.' Make one fully developed evaluative point.
A telecommunications company reports: 'An independent research firm surveyed 1 100 randomly selected New Zealanders. 46% named us as having the most reliable mobile network, compared with 38% for our nearest competitor. We have the most reliable network in New Zealand.' Evaluate this report.