document.write( "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. \n" ); document.write( "
Algebra.Com's Answer #785795 by Boreal(15235)\"\" \"About 
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The base proportion (point estimate) is 0.32
\n" ); document.write( "CI is 0.32 +/- z*sqrt(0.32*0.68/300), z=1.96
\n" ); document.write( "the half-interval is 0.053
\n" ); document.write( "the interval proportion is (0.267, 0.373)
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