A company utilizes two different machines to manufacture parts of certain type.

Question

A company utilizes two different machines to manufacture parts of certain type. During a single shift, a sample of n = 20 parts produced by each machine is obtained, and the value of a particular critical dimension for each part is determined. The comparative boxplot below is constructed from the resulting data. Machine Dimension 85 95 105 115 Compare and contrast the two samples. (Select all that apply.) A typical value is much larger for machine 1 than for machine2 D The only outlicr that exists is from machine D The only outlicr that exists is from machine 2 1. A typical value is much larger for machine 2 than for machine 1. There are no outliers present. Machine 1 and machine 2's sample values have about the same amount of variation O Machine 1's sample values have considerably more variation than does machine 2's sample values Machine 2's sample values have considerably more variation than machine 1's sample values A typical value seems to be about the same for the two machines.

Explanation / Answer

The outlier that exists is from machine 1 (the dot in the boxplot shows the outlier) Machine 2's sample values have considerable more variation than machine 1's sample values (increase in width of the boxplot indicates higher variability) A typical value seems to be about the same for the two machines (the middle line of boxplot is the median, which looks almost the same for both machines)

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