Question: 1. Why did statistical quality control ideas catch on in the 1940s?
2. Suppose you make electronic calculators that contain a chip purchased from a local vendor. How would you decide how much inspection to perform on the chips supplied to you?
3. For the following situations, comment on whether inspection by variables or by attributes might be more appropriate:
a. Filling packaged food containers to the proper weight.
b. Inspecting for defects in cloth.
c. Inspecting appliances for surface imperfections.
d. Determining the sugar content of candy bars.