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Find the confidence level for this confidence interval. Give your answer rounded to the nearest integer.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
From a random sample of 500 households in a particular town, the confidence interval for the proportion, $p$, of all households in that town owning two or more cars was obtained as $0.355 \le p \le 0.445$.