Problem 1: Calculate the standard deviation of the sample for the following data.
[1, 3, 4, 1, 4, 1, 1, 1, 1, 1, 1, 5]
Problem 2: Three processes are operating sequentially with 93% reliability each. Calculate the RTY.
Problem 3: Calculate the DPMO for a 3.5 sigma process.
Problem 4: Calculate the FTY for a process where 10000 widgets are produced of which 800 are scrapped due to errors with no rework.
Problem 5: Calculate the sigma of the process in 21.