題組內容

5.[20%] There are two classes (A and B) for a Statistics course. Class A utilizes distance leaming while class B utilizes traditional classroom Ilearning. If random samples of size 10 are taken from large groups of students from classes A and B, and the scones which they obtained in the final examination are: 61233df61adfb.jpg

(i) (10%) Calculate the sample means and sample variances of the scores for classes A and B respectively.