ANOVA) Is a Combination of Statistical Techniques Essay

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ANOVA) is a combination of statistical techniques in which a variance in a certain variable is divided into parts characteristic to various sources of variation. ANOVA provides a statistical evaluation of whether or not the ways of several congregates is equal and generalizes t-test of more than two groups. This technique is usually beneficial in comparing two, three, or more means of given tests, which can help businesses to identify trends. Moreover, the statistical technique is a practical tool that can be used to compare two groups either with a single independent variable or with two independent variables. It can also be used to assess differences in worker responses to employee engagement in a certain organization or to determine variations in employee productivity on specific work shifts depending on certain variables. As a result, analysis of variance is considered as a tool that can be used in manufacturing to improve or repair a process.

Variance Analysis in Manufacturing:

Since it is a statistical tool that can benefit many businesses, analysis of variance can be used across many industries to identify issues or variances between samples. The use of this technique in many industries is attributed to the fact that it is a good statistical tool for testing and a common Six Sigma instrument ("Reasons to Use the ANOVA," n.d.). In addition to manufacturing industry, analysis of variance can be used in healthcare, service, and food sectors for various purposes.

In the manufacturing industry, analysis of variance can be used to identify the best materials to use to create a product for a customer.

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For instance, this process can be used by a manufacturing plant to assess which metal is the sturdiest to purchase. If three different types of metals differ significantly in terms of process, the plant may look for means to save money while ensuring the creation of quality products. In this case, the statistical technique can be used to determine the most appropriate metal that will be used to accomplish this purpose. If the manufacturing plant determines that all the metals or materials are strong enough and suitable for the product to manufacture, it would then choose the least expensive. The significance of variance analysis in manufacturing is enhanced by the fact that manufacturers are determined to become demand driven while maintaining high levels of utilization and efficiency. In addition, manufacturing plants are striving to lessen Work In Process inventory while maintaining their response to enhanced demand for more customized products ("Manufacturing Performance Management," n.d.).

Use of ANOVA for Process Improvement or Repair:

In the process by manufacturers to become more demand driven while delivering quality, customized products, production variances are likely to occur. While these variances always occur but not understood, they are attributed to differences in material, labor, and overhead. The differences occur across the entire manufacturing plant, which implies that all departments should evaluate their processes in order to anticipate and identify problem areas. Notably, the production variances can be avoided or corrected through process improvement or repair respectively. Analysis….....

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