Muscles flex when stimulated through electric impulses either to motor points (points on the muscle) or to nerves. The article "Force Assessment of the Stimulated Arm Flexors: Quantification of Contractile Properties" (J. Hong and P. Iaizzo, Journal of Medical Engineering and Technology, 2002:28-35) reports a study in which both methods were applied to the upper-arm regions of each of several subjects. The latency time (delay between stimulus and contraction) was measured (in milliseconds) for each subject. The results for seven subjects are presented in the following table (one outlier has been deleted).

Can you conclude that there is a difference in latency period between motor point and nerve stimulation?

Subject 1 2 3 4 5 6 7 59 57 58 38 53 47 51 3 526653 Nerve Motor point 56 52 56 32 47 42 48 Difference