A-LevelMathematicsProbability and statisticsOct/Nov 2021Paper 6 Q35 Marks
A random sample of 75 students at a large college was selected for a survey. 15 of these students said that they owned a car. From this result an approximate a% confidence interval for the proportion of all students at the college who own a car was calculated. The width of this interval was found to be 0.162.
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