Please answer the following True or False questions. Show all work.
1) A process is capable if special cause variation is not present in the process.
2) Random variation is also referred to as uncontrollable variation.
3) Control charts are used to determine if there are unexpected variation in the process.
4) Three items in parallel, each having a reliability of 0.90have an overall system reliability of 0.999.
5) The lower control limit for an R-chart can be lower than 0.
6) Process stability means that there is no common variation in the process.
7) Effective benchmarking must be against the best company in the same industry.
8) A Six Sigma process must have a process capability index of 2.0 or higher.
9) In a Normally distributed process the mode and the mean have the same value.
10) Quality invariably leads to better financial results.