=+46. The following are modulus of elasticity observations for cylinders given in the article cited in Example 1.2:

37.0 37.5 38.1 40.0 40.2 40.8 41.0 42.0 43.1 43.9 44.1 44.6 45.0 46.1 47.0 62.0 64.3 68.8 70.1 74.5 Use the quantiles for a sample of size 20 given in this section to construct a normal quantile plot, and comment on the plausibility of a normal population distribution.