Computer a 95% confidence interval about the population mean difference UDThe lower bound is?The upper bound is?

Assume that the differences are normally distributed. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 7 8 X 44.5 43.5 44.8 47.0 52.9 46.3 46.4 48.4 Y 49.2 45.1 48.9 52.1 54.1 47.2 50.2 48.3 (a) Determine di = X - Y for each pair of data. Observation 3 4 5 6 7 8 d (Type integers or decimals.) (b) Compute d and sa. d= (Round to three decimal places as needed.) Sd = (Round to three decimal places as needed.) (c) Test if Hd 0 O D. Ho: Hd 0 P-value = (Round to three decimal places as needed.)