P( defective)= 3/5=p
so, q=1- (3/5) = 2/5
Y be the number of firing pins the quality control engineer must test
a) Y~ geometric ( 3/5)
b) E(Y) = q/p = (2/5) / (3/5) = 2/3
So , exepected cost of inspecting the lot = 200 * (2/3) = 133.33
7. A quality control engineer samples five from a large lot of manufactured firing pins and...
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