Calculate the average number of defects per basket

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A woodworker is concerned about the quality of the finished apperance of her work. in sampling units of a split willow hand woven basket, she has found the following number of finish defects in 10 unit 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 units are used calculate the lower control limit, center line, and upper control limit

Reference no: EM13521466

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