In a study involving stress among college students, a group of seniors are asked to complete a stress survey. after a two-hour seminar on relaxation methods, they are asked to complete the stress survey again. the appropriate design for testing the significance of the difference between the means is:

question 1: paragraph 3

question 2: paragraph 2

question 3: paragraph 1

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can you me on my ss question?

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.