Managing for Quality and Performance Excellence 9th Edition by James Evans,William Lindsay

تمرين 23

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.
Massive Corporation's tested five motors in a 900-hour test. Compute the failure rate if, three failed after 200, 475, and 750 hours and the other two ran for the full 900 hours each.