Quiz: Ch 11 Quiz: Two Sample Procedure Question 7 of 10 Th Assume that the differences are normally distributed. Complete parts (a) through (d) below. Observation 1. 8 X; 50.5 50.1 47.9 42.4 44.7 51.7 48.9 54 8 51.8 48.5 51.2 47.2 45.8 549 53 1 54 3 (a) Determine d; = X; - Y, for each pair of data Observation Type integers or decimals.) (b) Compute d and sa- d=(Round to three decimal places as needed ) sa =(Round to three decimal places as needed.) (c) Test if Ha