A Woodworker Is Concerned About the Quality of the Finished

question 19

Essay

A woodworker is concerned about the quality of the finished appearance of her work.In sampling units of a split-willow hand-woven basket,she has found the following number of finish defects in ten units sampled: 4,0,3,1,2,0,1,2,0,2.
a.Calculate the average number of defects per basket.
b.If 3-sigma control limits are used,calculate the lower control limit and upper control limit.

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Definitions:

Liquids

A state of matter characterized by an indefinite shape that conforms to the shape of its container, but with a definite volume.

Solids

Materials with a fixed shape and volume, characterized by strong intermolecular forces.

Density

A physical property defined as the mass per unit volume of a substance, often used to identify or characterize materials.

Volume

The amount of space that an object or substance occupies, measured in cubic units.