document.write( "Question 1068991: Suppose SAT Mathematics scores are normally distributed with a mean of 515515 and a standard deviation of 115115. A university plans to send letters of recognition to students whose scores are in the top 10%10%. What is the minimum score required for a letter of recognition? Round your answer to the nearest whole number, if necessary. \n" ); document.write( "
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Suppose SAT Mathematics scores are normally distributed with a mean of 515 and a standard deviation of 115. A university plans to send letters of recognition to students whose scores are in the top 10%. What is the minimum score required for a letter of recognition? Round your answer to the nearest whole number, if necessary.
\n" ); document.write( "Find the z score with a right tail of 10$
\n" ); document.write( "invNorm(0.9) = 1.282
\n" ); document.write( "Find the corresponding score using x = z*s + u
\n" ); document.write( "Ans: x = 1.282*115+515 = 662
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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