document.write( "Question 1085205: A NORMAL POPULATION HAS STANDARD DEVIATION OF 10. A RANDOM SAMPLE OF SIZE 25 HAS A MEAN OF 50. CONSTRUCT A 95% CONFIDENCE INTERVAL ESTMATE OF THE POPULATION MEAN. \n" ); document.write( "
Algebra.Com's Answer #699278 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! CI is mean +/- t(df=24, 0.975)*s/sqrt(n) \n" ); document.write( "use 50 as the point estimate of the mean \n" ); document.write( "50+/-2.06*10/5 \n" ); document.write( "interval width is +/-4.12 \n" ); document.write( "CI is (45.88, 54.12) \n" ); document.write( " |