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Family 2
Normal quantile z* + proportion ME
These 1 topics share one solution. Spot the family, apply the method — same trick, different story.
How to spot this family
- z* and margin of error for a proportion：This is the single most frequent question type — it shows up in every one of the 50/50 past papers, almost guaranteed to appear · a) "Given Z~N(0,1) ... some number" · b) "In a random sample of n ..., k showed ..." → find p̂ / margin of error / whether normality is reasonable
Topics in this family
Related knowledge points
The concepts behind this family's method — brush up first if unsure.