document.write( "Question 360931: A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and the population standard deviation of $630. Find the 90% confidence interval of the true mean. \n" ); document.write( "
Algebra.Com's Answer #450641 by paulacutino(1)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " |