The most important quality characteristic of a certain product is known to be a dimension, and research indicates that the dimension of 20 inches is ideal. You have collected a large number of a random sample, and the data shows that the dimension is normally distributed with mean 18 and variance 4.
(a) Obtain the expected quality loss incurred by the customer? Use the Taguchi loss function, assuming the loss coefficient (k) = 1.
(b) In order to minimize the expected quality loss, what strategy would you suggest?
Please show work
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