Quiz

The current edition and next years edition of the statistics book were reviewed to see if the mean number of questions per section has increased. Below shows some randomly checked sections and the number of exercises for each book.

	Sect. 1	Sect. 2	Sect. 3	Sect. 4	Sect. 5
Current	23	28	14	20	27
Next Year	20	33	17	24	28

What can be concluded at the 0.05 level of significance?