document.write( "Question 851393: ACT scores for each section are standardized so scores follow an approximately normal distribution with mean 21 points and standard deviation 4.7.
\n" ); document.write( "A. Based on out standard normal distribution, what is the value of z such that the proportion of observations below it is 0.6700?
\n" ); document.write( "B. Find the ACT score for which the proportion of observations below it is 0.6700.
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Algebra.Com's Answer #512749 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "A. NORMSDIST(0.67) = .4399
\n" ); document.write( "B. z= .4399 = (x-21)/4.7
\n" ); document.write( " 4.7*.4399 + 21 = 23
\n" ); document.write( "23 the ACT score for which the proportion of observations below it is 0.6700. \n" ); document.write( "
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