Which of the following statements are true?
I. A process is capable with a Cp ot Pp = 1.0
II. A process may be acceptable with a Cp or Pp = 1.0
III. A Cp or Pp of 1.0 means the process variation is equal to the specification spread
IV. A Cp or Pp of 1.0 means Cpk or Ppk = 2.0
A I only
B II only
C I, II, and III only
D I, II, III, and IV
Which of the following statements is true?
A Shifts, trends, and points out of control can be determined on the range portion of an X-bar, R control chart
B Specifications should be drawn on a control chart so that bad products can be detected
C An X-bar, R chart is the best choice to use when one does not have rational subgroups
D None of the above
A way to avoid bias in a Measurement System Evaluation (MSE) study is to
A Mix up the order of the samples under study so that the operators are not biased with the measurement that they got the last time they measured the part
B Use only calibrated measurement devices
C Use a different measurement device for each of the three (or more) operators
D Reset the whole measurement system between each of the trials
A Cp of 0.70 means
A The process is out of control
B The specifications are 70% of the process
C The process is acceptable
D All of the above
When using pre-control while running, what should you do when the first piece you check falls in the yellow?
A Stop running and return to setup rules
B Keep running, since you are still within spec
C Check the second piece
D Reset your limits
You are operating a concession stand selling hamburgers, hot dogs, french fries, and fountain drinks. Your processes are designed to prepare all food items to the proper internal temperature with a desirable external appearance. Which of the following items would you most likely deem as defective?
A An undercooked hamburger
B A batch of unevenly browned french fries
C An underweight hamburger
D A fountain drink with excess ice
E All of the above
Which of the following statements regarding the normal curve is NOT true?
A It indicates that the process is normally distributed
B It indicates that no factor or combination of factors is unduly influencing the process
C It says nothing about the center of the process variation
D It is a Gaussian distribution
According to Six Sigma philosophy
A Cp or Pp and Cpk or Ppk should be greater than 1.33
B Cp or Pp and Cpk or Ppk should be greater than 1.50
C Standard deviation is greater than 6
D Standard deviation is less than 6
Using the Box Cox Transformation formula, if the original value x = 3 and λ = 2, what is the resulting transformed value?
A 9
B 8
C 2/3
D 1.5