document.write( "Question 1126945: A university claim that 60% of its entering freshman graduate within five years. A freshman class of 1100 is monitored for five years. At the end of that period, it is found thiat 650 of these freshmen had graduated. What is the probability that we would have found that 650 or less of these freshmen have a graduated by that time if in fact the claim of 60% was correct ? \n" ); document.write( "

Algebra.Com's Answer #743562 by Boreal(15235) $\"\"$ $\"About$

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650/1100 is 0.591
\n" ); document.write( "do one sample proportion test
\n" ); document.write( "z=(0.591-0.600)/sqrt(.6*.4/1100); sqrt term is 0.01477
\n" ); document.write( "z=-0.009/0.01477=-0.61
\n" ); document.write( "probability z <-0.61 is 0.2709\r
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