SOLVED

Section 2  Process Capability 1) A process that is in statistical control will always yield products that meet their design specifications. 2) The higher the process capability ratio, the greater the likelihood that process will be within design specifications. 3) The Cpk index measures the difference between the desired and actual dimensions of goods or services produced. 4) The process capability measures Cp and Cpk differ because: A) only one ensures the process mean is centered within the limits. B) Cp values above 1 indicate a capable process, while Cpk values above 2 indicate a capable process. C) They do not differ: both are identical. D) Cp values for a given process will always be greater than or equal to Cpk values. E) Both A and D are correct. 5) A Cp value of 1.33 indicates a standard of how many standard deviations (sigmas)? A) 6 B) 1.33 C) 2 D) 3 E) 4 6) Which of the following is true regarding the process capability index Cpk? A) A Cpk index value of 1 is the highest possible. B) The larger the Cpk, the more units meet specifications. C) The Cpk index can only be used when the process centerline is also the specification centerline. D) Positive values of the Cpk index are good; negative values are bad. E) Its value will always be at least as large as the Cp value for the same process. 7) If the Cpk index exceeds 1: A) the AQL must be smaller than the LTPD. B) σ must be less than one-third of the absolute value of the difference between each specification limit and the process mean. C) the x-bar chart must indicate that the process is in control. D) the process is capable of Six Sigma quality. E) the process is characterized as “not capable.” 8) The statistical definition of Six Sigma allows for 3.4 defects per million. This is achieved by what Cpk index value? A) 6 B) 1 C) 1.33 D) 1.67 E) 2 9) A Cpk index of 1.00 equates to what defect rate? A) five percent B) 3.4 defects per million items C) 2.7 defects per 1,000 items D) 97.23 percent E) one percent 10) The term ________ is used to describe how well a process makes units within design specifications (or tolerances). 11) A Cpk index greater than ________ is a capable process, one that generates fewer than 2.7 defects per 1000 at the ±3σ level. 12) What does it mean for a process to be “capable”?