8/31/2023 0 Comments 1 sigma 2 sigma 3 sigma 6 sigma![]() ![]() Range: is a measure of "dispersion" which is the difference between the largest observed value and the smallest observed value in a given Sample.Mode: the most frequent Value of a variable in a DistributionĬustomer Waiting Time in minutes at SuperBank Ltd.on that Day, at that Time, and for that Sample of Customers was The "mean" Customer Waiting Time at SuperBank Ltd. For a number N of variables x i the Mean is Mean: a measure of the location of a Distribution.Distribution: a set of numbers collected from a well-defined universe of possible measurements arising from a property or a variable or a relationship under study.Ĭustomer Waiting Time in minutes at Teller queue.The total Population of Customers on the dd/mm/yyyy cueing for a Teller was 189. To this purpose, a Sample is chosen as a group of 20 Customers cueing on Day dd/mm/yyyy as from 09:30 a.m. want to know what is the mean Customer Waiting Time for a Teller. A Sample serves to provide information that may be used as a basis for making a decision concerning the larger quantity (Population). Sample: a group of units, portion of material, or observation taken from a larger collection of units, quantity of material, or observations.The Six Sigma methodology targets at: understanding variation - measuring variation - reducing variation - monitoring variation. Many processes are likely to being influenced by special and/or assignable causes that impact the overall process' performance relative to the customer's specification (or expectations). The objective of Six Sigma Quality is to reduce process output variation. Six Sigma utilises information ( management by facts) and statistical analysis to measure and improve an enterprise's operational performance, practices and systems. This leads to defect reduction and improvement in profits, employee morale and quality of product. The 6-Sigma methodology provides the tools to improve the capability of business processes, increasing their performance and decreasing their variability. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |