document.write( "Question 387872: The time taken for a computer to boot up, X, follows a normal distribution with mean 30 seconds and standard deviation 5 seconds.\r \n" );
document.write( "\n" );
document.write( "What is the z-score for a boot up time of x = 30 seconds? \n" );
document.write( "What is the z-score for a boot up time of x = 20 seconds? \n" );
document.write( " \n" );
document.write( "
![\"\"](\"/images/stars/stars-13.gif\")
