document.write( "Question 725019: Please help me solve this: The mean GPA of nursing majors in a certain university is 3.1 with a standard deviation of .70. What is the standard deviation of the distribution of sample means if each sample has 20 students in it? \n" ); document.write( "
Algebra.Com's Answer #444053 by stanbon(75887) ![]() You can put this solution on YOUR website! Please help me solve this: The mean GPA of nursing majors in a certain university is 3.1 with a standard deviation of .70. What is the standard deviation of the distribution of sample means if each sample has 20 students in it? \n" ); document.write( "---- \n" ); document.write( "Check out the Central Limit Theorem: \n" ); document.write( "mean of sample means = u \n" ); document.write( "std of sample means = s/sqrt(n) \n" ); document.write( "------------- \n" ); document.write( "Your Problem: \n" ); document.write( "std = 0.7/sqrt(20) = 0.1565 \n" ); document.write( "============= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |