Question

Which of the following is a graph of a series of successive observations of a particular step, procedure, or operation taken at regular intervals of time?

		A) control chart
		B) Pareto diagram
		C) cause-and-effect diagram
		D) fishbone diagrams

Answer 1

answer : A) Control Chart

explanation

option A is correct - control chart is a graph of series of successive observations of a particular step , procedure or operation taken at regular intervals of time . it is used to study how a process change over the time . it has a central line for average , upper control limit and lower control limit . if the observations are within the limit ,the given process will be accepted otherwise rejected .

option B is incorrect because it is uded in quality control procedure ,it locates the most common reason for defects

option C is incorrect because cause and effecr diagram is used for identifying the potential causes of failures or defects in the quality control procedure

optio D is incorrect - fishbone diagram is a cause and effect diagram it tracks the reasons for imperfections, failures or defects