document.write( "Question 1190921: Commute times (amounts of time it takes people to commute from home to work) of people in a small town are normally distributed with a mean of 35 minutes and a standard deviation of 9.7 minutes.\r
\n" ); document.write( "\n" ); document.write( "Find the z-score that corressponds to the 90 th percentile. Round your answer to two decimal places.\r
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\n" ); document.write( "\n" ); document.write( "Find the commute time in the normal distribution above that corressponds to the 90 th percentile. Round your answer to one decimal place.
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Algebra.Com's Answer #822705 by Boreal(15235)\"\" \"About 
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z(0.90)=1.28
\n" ); document.write( "z*sigma=(x-mean)
\n" ); document.write( "12.42=(x-35)
\n" ); document.write( "x=47.42 min or 47.4 minutes
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