An important quality characteristic of water is the concentration of suspended solid material. Following are 60 measurements on suspended solids from a certain lake. Construct a normal probability...

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Extracted text: An important quality characteristic of water is the concentration of suspended solid material. Following are 60 measurements on suspended solids from a certain lake. Construct a normal probability plot. Does it seem reasonable to assume that the concentration of suspended solids is normally distributed? 42.4 65.7 29.8 58.7 52.1 55.8 57.0 68.7 67.3 67.3 54.3 54.0 73.1 81.3 59.9 56.9 62.2 69.9 66.9 59.0 56.3 43.3 57.4 45.3 80.1 49.7 42.8 42.4 59.6 65.8 61.4 64.0 64.2 72.6 72.5 46.1 53.1 56.1 67.2 70.7 42.6 77.4 54.7 57.1 77.3 39.3 76.4 59.3 51.1 73.8 61.4 73.1 77.3 48.5 89.8 50.7 52.0 59.6 66.1 31.6