document.write( "Question 1203242: Please help me solve this problem, thanks!\r
\n" ); document.write( "\n" ); document.write( "The length of easy listening songs has mean 153 seconds and standard deviation 35 seconds. Determine the probability (as percent) that a random selection of 23 songs will have mean length of less than 149.35 seconds.\r
\n" ); document.write( "\n" ); document.write( "The probability is: %
\n" ); document.write( "(Round your answer to the nearest percent) \n" ); document.write( "
Algebra.Com's Answer #838669 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
population mean is 153 seconds.
\n" ); document.write( "population standard deviation is 35 seconds.
\n" ); document.write( "sample size is 23.
\n" ); document.write( "standard error = 35 / sqrt(23) = 7.298.
\n" ); document.write( "probability that the sample will have a mean length of less than 149.35 seconds is equal to .3085 = 30.85%.\r
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\n" ); document.write( "\n" ); document.write( "keep in mind that you may need to round to the nearest percent.
\n" ); document.write( "i didn't do that.
\n" ); document.write( "this applies to all the problemms you posted that i answered.\r
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\n" ); document.write( "\n" ); document.write( "here are the results, using the same calculator i used for all 3 problems.\r
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