A-LevelMathematicsProbability and statisticsOct/Nov 2023Paper 6 Q24 Marks
In a survey of 300 randomly chosen adults in Rickton, 134 said that they exercised regularly. This information was used to calculate an a% confidence interval for the proportion of adults in Rickton who exercise regularly. The upper bound of the confidence interval was found to be 0.487, correct to 3 significant figures. Find the value of a correct to the nearest integer.
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