Difference average number of ounces filled by four machines

Reference no: EM13953020

Analysis of variance may be used in an industrial setting. For example, man- agers of a soda-bottling company suspected that four filling machines were not filling the soda cans in a uniform way. An experiment on four machines doing five runs each gave the data in the following table.

Liquid Weight of Machine-Filled Cans in Ounces

Machine A	Machine B	Machine C	Machine D
12.05	11.98	12.04	12.00
12.07	12.05	12.03	11.97
12.04	12.06	12.03	11.98
12.04	12.02	12.00	11.99
11.99	11.99	11.96	11.96

Based on the analysis of variance, is there a difference in the average number of ounces filled by the four machines? Apply Tukey's HSD test to compare the mean differences if the overall ANOVA test is significant at the 5% level.

Reference no: EM13953020

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