Using the information in the picture below. I'm not sure if I did the first part correctly (di). Ud refers to mean differencePart b) compute d with dash on top and sd (round to three decimal places as needed). Part C) test if ud0 c. H0:ud0, H1:ud

Observation 2 3 4 5 6 7 8 Xi 54.3 45.6 40.5 50.3 53.1 42.1 44.7 51.3 Y 54.8 47.1 45.8 54.1 54.7 46.5 45.5 51.5 Observation 2 3 4 5 6 d 0.5 1.5 5.3 3.8 - 1.6 1-4 4 0.8 0.2 (Type integers or decimals.) (h) Compute d and s