Question: What is the correct null hypothesis for a repeated-measures t-test that examines the change in anxiety levels after a trauma intervention? Option A M subscript

What is the correct null hypothesis for a repeated-measures t-test that examines the change in anxiety levels after a trauma intervention? Option A M subscript D = 0 Option B mu subscript D = 0 Option C mu subscript 1 equals mu subscript 2 Option D M subscript 1 equals M subscript 2

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