. A company has just negotiated a contract to produce a part for another firm. In the process of manufacturing the part, the inside diameter of successive parts becomes smaller and smaller as the cutting tool wears.
However, the specs are so wide relative to machine capabilities that it is possible to set the diameter initially at
a large value and let the process run for a while before replacing the cutting tool.
The inside diameter decreases at an average rate of .001 cm per part, and the process has a standard deviation
of .05 cm. The variability is approximately normal. Assuming a three-sigma buffer at each end, how frequently
must the tool be replaced if the process specs are 3 cm and 3.5 cm?

Upper a report about the decline of western investment in third world countries included this: "after years of daily flights comma several european airlines halted passenger service. foreign investment fell 400 percent during the 1990 s." what is wrong with this statement? choose the correct answer below. a. if foreign investment fell by 100 % comma it would be totally eliminated comma so it is not possible for it to fall by more than 100 %. b. the actual amount of the decrease in foreign investment is less than 100%. c. if foreign investment fell by 100%, it would be cut in half. thus, a decrease of 200% means that it would be totally eliminated, and a decrease of more than 200% is impossible. d. the statement does not mention the initial amount of foreign investment.