document.write( "Question 729657: Hello, I have had this question a couple of times now and can't figure it out. Help Please!!\r
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document.write( "Mrs. Smith's reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to receive a special award. Assuming that the distribution of words read per minute are normally distributed, what is the minimum number of words per minute a student would have to read in order to get the award? \n" );
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Algebra.Com's Answer #446217 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Mrs. Smith's reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to receive a special award. Assuming that the distribution of words read per minute are normally distributed, what is the minimum number of words per minute a student would have to read in order to get the award? \n" ); document.write( "----- \n" ); document.write( "Find the z-value with a right tail of 3%. \n" ); document.write( "|invNorm(0.03)| = 1.8808 \n" ); document.write( "---- \n" ); document.write( "Find the corresponding wpm number using x = z*s + u \n" ); document.write( "---- \n" ); document.write( "wpm = 1.8808*20+175 = 213 when rounded up. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |