State whether the following statements are True or False. Give reason in support of your answer:
(a) Statistical quality control (SQC) is a technique of process control only.
(b) Twenty pieces of different length of cloth contained 2, 4, 1, 3, 5, 4, 2, 7, 3, 5, 2, 2, 4, 5, 6, 4, 2, 1, 2, 4 defects respectively. To check the process is under control with respect to the number of defects, we should use np-chart.
(c) If the probabilities are not associated with the occurrence of different states of nature, then the situation is known as decision making under risk.
(d) In single sampling plan, if we increase acceptance number then the OC curve will be steeper.
(e) A system has four components connected in parallel configuration with reliability 0.2, 0.4, 0.5, 0.8. To improve the reliability of the system most, we have to replace the component which reliability is 0.2.

a). False

Statistical quality control (SQC) is a part of quality control that uses statistical methods to analyze data from quality control charts with the aim of detecting variation or defects that may exist in items being produced by a process.

In statistical quality control, statistical techniques are used to prevent defects and improve the process of manufacturing a certain item. The first step in preventing defects is through a process known as inspection. Inspection involves visually looking over the product for any imperfections or issues that may arise. Inspectors then determine if there will be any additional action taken on the product. In order to ensure that no defective products make it to market, several of these inspections ___ _________ ____ ________ ______ __________.
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