A research hypothesis states a no specific relationship is b

A research hypothesis states: a) no specific relationship is being tested. b) two samples have been drawn from populations with different means. c) two samples have been drawn from the same population. d)mean1=mean2

Solution

A research hypothesis states:

d) mean1=mean2

Always in the hypothesis you will know is there is a difference between the groups and the usual way to see is there is a difference is with their mean