Statistical Quality Control

Answer:

Statistical Quality Control (SQC) is the term used to describe the set of statistical tools used by quality improvement professionals to monitor, control, and improve products and processes.

SQC tools fall into three broad categories:

1. Descriptive Statistics which are used to describe quality characteristics and relationships. Included are statistics such as the mean, standard deviation, the range, and other measures of the distribution of data.

2. Statistical Process Control (SPC) which involves inspecting samples of the output from a process and deciding whether the process is producing products with characteristics that fall within a predetermined control limits. SPC answers the question of whether the process is functioning in a stable and predictable manner or not. Low cost SPC training.

3. Acceptance Sampling which is the process of randomly inspecting a sample of goods and d eciding whether to accept the entire batch based on the results. Acceptance sampling determines whether a batch of goods should be accepted or rejected.