SOLUTION: A random sample of 300 drivers revealed that 96 of them had received a speeding ticket in the last 3 months. Construct a 95% confidence interval for the number of drivers who recei
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Question 1162079: A random sample of 300 drivers revealed that 96 of them had received a speeding ticket in the last 3 months. Construct a 95% confidence interval for the number of drivers who receive speeding tickets over a three-month period. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! The base proportion (point estimate) is 0.32
CI is 0.32 +/- z*sqrt(0.32*0.68/300), z=1.96
the half-interval is 0.053
the interval proportion is (0.267, 0.373)