document.write( "Question 433172: A resort tracks the number of days each guest stays. They've discovered that this variable is normally distributed with a mean of 9 days and a standard deviation of 3. They would expect 10% of the guests stay longer than how many days? \n" ); document.write( "
Algebra.Com's Answer #300273 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

\n" );
document.write( "Hi
\n" );
document.write( "*Note: \"z+=+blue%28x+-+mu%29%2Fblue%28sigma%29\"
\n" );
document.write( "10% of the guests would stay longer than how many days? 
\n" );
document.write( " z = 1.2816 for the 90%
\n" );
document.write( "mean of 9 days and a standard deviation of 3.
\n" );
document.write( " 9 + 3*1.2816 = 12.8448  or 13 days \n" );
document.write( "
\n" );