Find probability that water specimen collected from river

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Reference no: EM131402437

Alkalinity of water. The alkalinity level of water specimens collected from the Han River in Seoul, Korea, has a mean of 50 milligrams per liter and a standard deviation of 3.2 milligrams per liter (Environmental Science and Engineering, September 1, 2000).

Assume the distribution of alkalinity levels is approximately normal and find the probability that a water specimen collected from the river has an alkalinity level

(a) exceeding 45 milligrams per liter.

(b) below 55 milligrams per liter.

Reference no: EM131402437

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