Managing for Quality and Performance Excellence 10th Edition by James Evans ,William Lindsay

Exercise 43

Note: Data sets for several problems are available in the Excel workbook C07Data in the Student Companion Site for this chapter. Click on the appropriate worksheet tab as noted in the problem (e.g., Prob. 7-5, etc.) to access the data.
A manufacturer of MP3 players purchases major electronic components as modules. The reliabilities of components differ by supplier (see the system diagram below). Suppose that the configuration of the major components is given by:

The components can be purchased from three different suppliers. The reliabilities of the components are as follows:

Transportation and purchasing considerations require that only one supplier be chosen. Which one should be selected if the player is to have the highest possible reliability?