Topic_9.1___Statistical_Inference___Comparison_of_Multiple_Groups___Examples

# Topic_9.1___Statistical_Inference___Comparison_of_Multiple_Groups___Examples

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Comparison of Multiple Groups —One- Way Analysis of Variance – Examples Ash Genaidy

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Case Study Plastic containers for motor oil are blow molded in a machine that has two feeders, each feeding into three molding stations (a total of six stations). Plastic is extruded through the feeders into continuous cylinders between two halves of each mold. As the mold closes, the cylinders are pinched off and air is blown into them to form the container shapes.
Case Study The production engineer is concerned that the weights of the molded containers at different stations are not uniform and a substantial fraction of the containers are not close to the design weight of 51.5 grams. To investigate the causes behind this and to identify the problematic stations, a random sample of eight containers is taken from each station. Analyze the data graphically and by summary statistics to help in the investigation.

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## This note was uploaded on 10/13/2010 for the course MINE 340 taught by Professor Geinady during the Summer '04 term at University of Cincinnati.

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Topic_9.1___Statistical_Inference___Comparison_of_Multiple_Groups___Examples

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