point(s) possible K A paired difference experiment yielded no pairs of observations. In each case, what is the rejection region for testing Ho Hd = 2 against Ha Hd>2? a. nd = 12, = 0.05 t> 1.796 (Round to three decimal places as needed.) b. nd = 22, = 0.10 t> (Round to three decimal places as needed.) c. nd=6, a = 0.025 t> 2.571 (Round to three decimal places as needed.) d. nd = 9, a = 0.01 A 2.896 (Round to three decimal places as needed.)