Statistics for Social Science
posted by Pearl on .
A random sample of 80 students at a largae school shows an average grade of 72 in Algebra with a standard deviation of 4. Find the standar error.

SEm = SD/√n
Insert values and calculate.
posted by Pearl on .
A random sample of 80 students at a largae school shows an average grade of 72 in Algebra with a standard deviation of 4. Find the standar error.
SEm = SD/√n
Insert values and calculate.