Monday
April 21, 2014

Homework Help: social science statistics

Posted by mike on Tuesday, April 9, 2013 at 11:33am.

a professor was curious to whether the students in a very large class she was teaching who turned in their first scored differently from the overall mean on the test.The overall mean score on the test was 75 with a standard deviation of 10;the score were approximately normally distributed.The mean score for the first 20 tests was 78.Did the student turning in their tests first score significantly different from the mean at the .05 level.

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