document.write( "Question 364274: a tire company manufactures tires with =35,600 miles and =4,925 miles. If a random sample of 50 tires is taken, what is the probability that the mean life of the tires is less than 35,000 miles? \n" ); document.write( "
Algebra.Com's Answer #259732 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! a tire company manufactures tires with =35,600 miles and std=4,925 miles. If a random sample of 50 tires is taken, what is the probability that the mean life of the tires is less than 35,000 miles? \n" ); document.write( "======= \n" ); document.write( "t(35000) = (35000-35600)/[4925/sqrt(50)]= -0.8615 \n" ); document.write( "------ \n" ); document.write( "P(x < 35000) = P(t < -0.8615 when df = 49) = 0.1066 \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================= \n" ); document.write( " |