x 11.2.4-T Assume that the differences are normally distributed. Complete parts (a) through (d) below. Observation 1 2 3 5 6 7 8 43.7 51.0 43.1 47.5 51.2 49.6 49.2 48.1 Y. 47.6 51.4 18.3 52.7 52.4 52.8 50.1 50.2 (a) Determine d. = X - Y, for each pair of data. Observation 2 3 5 7 8 d -3.9 -0.4 -5.2 -5.2 -3.2 -0.9 -2.1 Type integers or decimals.) (b) Compute d and Sd d= -2.763 (Round to three decimal places as needed.) Sa = (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 4 parts remaining Clear All 4 26 MacBook Pro esc F1 F2 20 F3 F4 F5 F6 44 F7 @ 2 3 4 5 Q W E R Y lock A S D F G H Z X C V CO all