Six Sigma corresponds to Process Capability Index Cp = 1.
True or False?
Ans: True
If a process is perfectly centered, it has a Cp of 1. That would indicate that mean was 3 standard deviations away from the upper limit and the lower limit
Six Sigma corresponds to Process Capability Index Cp = 1. True or False?
Question 15 (1 point) The process capability ratio (Cp) of a Six Sigma Program is 2. (The upper and lower specification limits are each 6σ away from the mean. True False
Which of the following statements is TRUE about capability analyses? A. A higher process capability index means the process has a higher defect probability B. A higher process capability index means the process has a lower defect probability C. A process must have its mean centered in the middle of its tolerance interval in order to perform capability analyse D. A process capability index of 1.33 means that a process has a six sigma capability
Question: The following is true about process capability: O A A high Cp, a lw Cpk tells you that the process is capable, but off-center O B The Cpk is always greater than the Cp O C Cpk is the same as Ppk O D Cpk has no bearing on expected defects per million opportunities
How is process capability measured? • A. By comparing control limits to specification limits • B. By creating a ratio between specification limits and control limits relevant to six sigma • C. By using the Cp formula • D. All the above
6) For the process to be capable of meeting design specifications the process capability index must be a- less than one (1.0) b- greater than one (1.0) c less than zero (0.0) d- greater than zero (0.0) 7) We are monitoring a process that has an outcome that is normally distributed with a mean of 100 and a standard deviation of 10. We would use a (n)----- -- to evaluate whether this process's average is remaining in control. a- x-bar...
A key joint in a precision machining process has a lower specification limit of a width of 0.99 mm and an upper specification limit of 1.01 mm. The standard deviation is 0.005 mm and the mean is 1 mm. The company wants to reduce its defect probability and operate a "Six Sigma process." To what level would this company have to reduce the standard deviation in the process to meet this target? Note: A "Six Sigma process" has a process...
True or False: o To construct a portfolio that corresponds to the DJIA (i.e., portfolio return-index return), an investor must buy an equal number of shares of each of the component stocks
Question 6 1 pts You have just used the capability index (Cpk) formulas to compute the two values "min [0.8, 1.2]". Which of the following is the proper interpretation of these numbers? The true capability index value is 1 The true capability index value is much larger than 1 The mean of the production process has shifted to the left of the design limits The mean of the production process has shifted to the right of the design limits The...
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Question 6 1 pts You have just used the capability index (Cpk) formulas to compute the two values "min (1.2, 0.8)". Which of the following is the proper interpretation of these numbers? The mean of the production process has shifted to the left of the design limits The true capability index value is much larger than 1 The mean of the production process has shifted to the right of the design limits The mean has not shifted at...
Lean Six Sigma
The Lower Specification Limit is 8.0 seconds
36. Representative data gathered from a process that follows a normal distribution shows a mean of 8.2 seconds with a standard deviation of 0.3 seconds. The process has 8.5 seconds as an upper specification limit. What is the process yield? a. Calculate: Cp and Cpk b. How many defects per million opportunities the process produces? (hint: use the Excel spreadsheet given in class) c. What is the Sigma of the...