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 793.3, 791.7, 791.3, 791.4, 793.7, 790.1
B 803.1, 791.1, 800.9, 789.1, 795.2, 788.7
(b) Is there a difference in the measurements of the muzzle
velocity between device A...