93) Each person who applies for an assembly job at Carolina Furniture Inc is given a mechanical aptitude test. One part of the test involves assembling a dresser based on numbered instructions. A sample of the lengths of time it took 42 persons to assemble the dresser was organized into the following frequency distribution.

Length of Time Frequency
(minutes)
2 up to 4 4
4 up to 6 8
6 up to 8 14
8 up to 10 9
10 up to 12 5
12 up to 14 2

Solution Preview

Range = Highest Data Value - Lowest Data Value

= 14 - 2 = 12

Standard Deviation ...

Solution Summary

The solution includes a word file and an excel file that show a step by step calculations of the range, variance and standard deviation.

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