The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 A 794.8 793.8 793.9 791.5 794.4 793.5 B 795.0 792.3 800.5 790.3 803.5 792.6 LOADING... Click the icon to view the table of critical t-values. Question content area bottom Part 1 a) Why are these matched-pairs data? A. The same round was fired in every trial. B. All the measurements came from rounds fired from the same gun. C. Two measurements (A and B) are taken on the same round. D. The measurements (A and B) are taken by the same instrument