Exam 7: Quality Assurance

Continuing with casual analysis,after the fishbone diagram is considered complete,it is reasonable to determine what variations of cause and effect should be tested.

_____ show at a glance what factors affect quality and thereby what may be the causes of quality problems.

Some problems arise during inspection of the product while it is on or just about to leave the production line.

The double-sampling plan requires two acceptance numbers c₁ and c₂ such that c₁ > c₂.

_____ encompasses statistical process control as well as other statistical methods,including acceptance sampling.

The appropriate _____ is to abhor defectives and do as much as feasible to prevent them from occurring.

The p-chart monitors the stability of the range.

_____ is defined as the process of quality attainment that starts with detection of problems.This is followed by diagnosis of causes of problems,prescription of corrective actions to treat problems,and follow-up through observation and evaluation.

The first step of control charting is

_____ is when output units are classified as accepted or rejected,usually by some form of inspection device that only distinguishes between a "go" or "no go" situation.

Even people who are turned off by tables of numerical data are often willing to study a

Control chart steps include diagnosing the causes of process instability,removing the causes of process instability,but do not include checking the results.

Inspections and inspectors reduce defectives made.They do not reduce defectives shipped.

A _____ of numbers on any control chart is a succession of values that fall either above or below the mean line.

Method 6,of the seven QC methods,covers the preparation and employment of statistical quality control charts and is the most elaborate and powerful approach of all methods.

_____ is defined as the policy that requires eliminating any and all causes of defects.

Process charts play a crucial role in causal analysis.

For the _____ to apply,the sample size should be small as compared to the lot size.

The relationship between the variability of a stable parent distribution and that of the distribution of the sample means is known as the central limit theorem.

Acceptance sampling involves trade-offs that balance the cost of sampling against the risk of accepting more defectives than permissible.