1.Statistics is a science concerned with the collection, organization, analysis, interpretation, and presentation of data.

True or False

2.When decisions about the safety, life, serviceability, and maintainability of products are dominated by customer requirements rather than by engineering considerations, poor designs that fail in the market are often the result.

True or False

3.When interactions are present in an experiment, main effects have little meaning.

True or False

4.The total observed variation in production output is the sum of the true process variation plus variation due to measurement.

True or False

5.A perfume bottle is designed to have a capacity of 15 ounces. There is variation in the bottle manufacturing process. Based on historical data, let's suppose that the bottle capacity can be reasonably modeled by a normal distribution with a mean of 15 ounces and a standard deviation of 0.2 ounces. What proportion of these bottles will have a capacity between 14.7 and 15.1 ounces?

0.3830

0.6247

0.8664

0.9876

6.Group width =

(UL - LL)/Number of Groups.

Number of Groups/(UL - LL).

(UL + LL)/Number of Groups.

(UL - LL)(Number of Groups).

7.The _____ measures the degree of asymmetry of observations around the mean.

coefficient of correlation

coefficient of skewness

coefficient of kurtosis

coefficient of determination

8.A measurement system may be precise but not necessarily accurate at the same time.

True or False

9.Under quality function deployment (QFD), all operations of a company are driven by the voice of the customer, rather than by edicts of top management.

True or False

10.If all sample averages on an-chart fall within the control limits, all output will be conforming.

True or False