The average amount of time male and female college students spent on playing computer games each day is believed to be the same. A random sample of 15 male students yield a mean of 5 hours with a standard deviation of 2.4 hours, whereas random sample of 10 female students give a mean of 4 hours with a standard deviation of 3.5 hours. Is there a difference in the average amount of time male and female students play computer games each day? Test at the 5% level of significance.