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Microtech's quality assurance people test 0.001% of the 250 metric tons of coolant water at their plant for mercury each week. Any mercury found above the
federal standard level will call for an immediate shutdown of operations.

Identify the population to be observed.
Identify the sample.

Identify the variable to be measured (need to enter "amount of something").

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Meherpuya

Answer:

**Population to be Observed:**

- The entire 250 metric tons of coolant water at Microtech's plant.

**Sample:**

- The 0.001% of the 250 metric tons of coolant water that the quality assurance people test each week.

**Variable to be Measured:**

- The amount of mercury in the coolant water.

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