The following data represent the muzzle velocity (in feet per second) of shells

Question

The following data represent the muzzle velocity (in feet per second) of shells fired from a 155-mm gun. For each shell, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Observation 1 2 3 4 5 6 A 791.5 793.2 790.2 794.6 791.1 791.5 B 798.2 799.9 792.1 804.2 793.7 794.6 (a) Why are these matched-pairs data? Two measurements (A and B) are taken on the same round. All the measurements came from rounds fired from the same gun. The measurements (A and B) are taken by the same instrument. The same round was fired in every trial.

Explanation / Answer

Option-A)

  

  

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