document.write( "Question 723686: The sampled population is normally distributed, with the given information. \n" );
document.write( "(Give your answers correct to two decimal places.)\r \n" );
document.write( "\n" );
document.write( "n = 18 \n" );
document.write( "Sample mean = 28.5 \n" );
document.write( "σ = 6.7\r \n" );
document.write( "\n" );
document.write( "(a) Find the 0.9 confidence interval for μ. \r \n" );
document.write( "\n" );
document.write( "________ to ____________\r \n" );
document.write( " \n" );
document.write( "\n" );
document.write( "FYI: I came up with 25.66 to 31.34 and it marked it wrong. Since it is an online class, it is hard to get help when I am stumped...\r \n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
![\"\"](\"/images/stars/stars-13.gif\")
