 ## A population is a set of existing units.

1. A population is a set of existing units.

2. If we examine some of the population measurements, we are conducting a census of the population.

3. A random sample is selected so that on each selection from the population every unit remaining in the population has an equal chance of being chosen.

4. A process is in statistical control if it does not exhibit any unusual variations.

5. An example of a quantitative variable is the make of a car.

6. An example of a qualitative variable is the mileage of a car.

7. Statistical inference is the science of using a sample of measurements to make generalization about the important aspects of a population of measurements.

8. If we sample without replacement, we do not place the unit chosen on a particular selection back into the population.

9. By taking a systematic sample, in which we select every 100th shopper arriving at a specific store, we are approximating a random sample of shoppers.

Multiple Choice Questions

10. Statistical methods help to:

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06 Mar 2018
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