Mathematics (AS & A Level) · May / June 2026 · Paper 65 · Question 3
9709
As printed in the paper
The question as text
A researcher chose a random sample of 150 adults in Dombridge for a survey about dog ownership. The number of adults in the survey who owned a dog was a. An approximate 94% confidence interval for the population proportion, p, of all the adults in Dombridge who owned a dog was calculated. The width of the interval was 0.13241, correct to 5 decimal places.
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3(a)[5]
3(b)[3]
3(c)[3]
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