Answer
Normal
Work Step by Step
We know the following equation for z-scores:
$z=\frac{x−μ}{σ}$
Thus, after finding the standard deviation and average using a calculator, we use this equation to see that the coordinates (x,z) are:
(134,−0.52);(139,0);(131,−1.28);(143,0.52);(145,1.28)
After we use this to create the normal quantile plot, we can see if the data are in a straight line. In this case, the data are in a straight line, hence we can see that the distribution is normal.