A sample of 82 statistics students spent an average of 14 hours preparing for their own exams with a standard deviation of 5 hours. A sample of 56 accounting students spent an average of 13 hours preparing for their exams with a standard deviation of 4 hours. Obtain the 95% confidence interval for the difference between the two population means. Based on the interval what is your confidence?

A. [0.52,1.48]. No significant difference.

B. [-0.52,2.52]. Stat students spend more time

C. [-0.52,2.52]. No significant difference

D. [0.52,1.48] stat students spend more time