Question

A teacher wishes to test whether or not the case method of teaching is more
effective than the traditional method. She picks two classes of approximately
equal intelligence. She gathers a sample of 18 students to whom she uses the
case method and another sample of 14 students to whom she uses traditional
method. After the experiment an objective test revealed that the first sample got
a mean score of 28.6 with standard deviation of 5.9 , while the second group got
a mean of 21.7 with a standard deviation of 4.6 based on the result of the
administered test, can we say that the case method is more effective than the
traditional method. Prove it.

Answer 1

The proof of given statement is as follows