Exam 7: Quality Assurance

Why should control limits be set closer together,rather than set wide apart?

The distribution of _____ means is narrower than the distribution of the _____ population.

Alpha is known as the _____ error and identified as an error of omission.

The central limit theorem equation translated into words is sigma square of the sample means (x-bar) on the left side of the equation equals sigma square of the parent population values (x) divided by n on the right side.

_____ are composed of data points that are associated with each other,such as height and weight.

_____ is inspecting acceptability of suppliers' shipments by using sampling of required qualities instead of 100 percent inspection.

_____ determines the most frequent types of defects and puts them in rank order.

The _____ is based on the process average for percent defectives with upper- and lower-control limits and plotted points of successive sample means.

If the process is stable,the plotted points of the sample means will fall outside control limits that are based on within-group variability.

_____ track and account for the number of nonconformities of a part,

_____ point(s) falling above the upper-control limit of a quality control chart signals a possible change in the process.

For job shops,the first items made,during and right after setup,are likely to be defective.If the order size calls for 20 units and the expected percent defective to get the job right is p,which is 5 percent in this job shop,how many units should be made to compensate for defectives?

An economic reason to shun 100 percent inspection is that it is often labor intensive.

_____ organize and depict the results of analyses concerning the determination of the causes of quality problems.

Imputed cause and effect is a powerhouse for monitoring process conditions and for stabilizing processes.