Answer
See explanation
Work Step by Step
a.
Manufacturer 1: [0.516-0.504] = 0.012
Manufacturer 2: [0.514-0.512] = 0.002
Manufacturer 3: [0.502-0.500] = 0.002
b.
Manufacturer 2 and Manufacturer 3 depict high precision in the measurements. The measurements are consistent.
c.
Manufacturer 1 would be misleading if they said that their measurements depict high precision. The measurements are neither consistent nor in agreement.