MGMT 339 Exam 2 Questions And
Correct Answers 2025.
Genentech finds that the results of their testing indicate a gradual shift upward in the average
size of drilled holes. They were most likely using a ______ type control chart for _____ - Answer
X bar / Variable
Dayspring Manufacturing in Torrance, CA makes aftermarket competition gears for pre-1974
Volkswagen Beetles. They want to have a mean ring gear diameter of 270 mm +20mm,-30mm
with a standard deviation of 9mm. What is the Cpk for the Upper Limit and what is the Cpk for
the Lower limit, and is the process capable? - Answer 270-240/(3)(9)=1.11.
290-270/(3)(9)= 0.74
Not capable
Y&T Foods in Reno, NV found that they had all of their data within range when testing over a
large (in excess of 7) standard deviations. They assumed their process was in control. They most
likely are operating under a________ error - Answer Type II
Laseright Software discovered a number of defects in their software and counted them daily.
They plotted the number of defects after they computed an average, Upper and Lower control
limits. They plotted a _______type control chart for _______ . - Answer C chart / Attributes
Yokelight Manufacturing in Toledo, OH found that plotting time ordered charts of cylinder
diameter within a specific range helped them to detect variability beyond the range. This type
of chart is known as a _____type control chart for ________. - Answer R chart / Variables
Horeb Foundries in El Monte, CA produces cast iron covers for water meters and drain covers.
They are able to compute the proportion of defective (bad vs. good) items and are able to chart
those results. They most likely use a _____type control chart for______. - Answer P chart /
Attributes
Top Line Engineering in Grand Rapids, MI makes precision butterfly valves for high performance
fuel injection systems. They want to achieve a mean bore diameter of 48 mm +/- 0.5mm with a
standard deviation of 0.11 mm on their butterfly valves for 1991-1993 BMW M5 sedans. What is
the Cp, and is the process capable? - Answer 4.85-47.5/(6)(.11)=1.52
, Advent Pharmaceuticals in Nazareth, PA found that they had some of their data out of range
when testing over smaller (2 or fewer) standard deviations. They assumed their process was out
of control. They most likely are operating under a _______error. - Answer Type I
Two executives from Landall Manufacturing in St. Louis, MO were joking that they could make
their passenger side airbags for Mercdes S580 sedans out of chewing gum and still be ISO 9000
certified. In theory, is this possible? - Answer Yes
Endless Summer Polymers in Redondo Beach, CA makes foam board blanks for surf boards.
When they take a portion of their surfboard blanks out of production and measure them to
determine if they will pass the entire production run for sale to the customer, this is the first
step in _______ Sampling - Answer Acceptance
A machine has a standard deviation of 0.130 mm and a specification of 12.0 +/- 0.57 mm to
make holes that need to be drilled into an electrical panel. Please calculate the process
capability ratio, Cp
A. 1.53
B. 1.46
C. 0.68
D. 9.2
Is the process capable? - Answer B. 1.46 / Yes
If the machine tooling wears and the standard deviation becomes larger at a rate of 0.001 mm
per hole, how many holes can be drilled before the process becomes incapable? Please round
to 2 decimal places when solving for process capability and 3 decimal places when solving for
standard deviation.
A. 1 hole
B. 27 holes
C. 13 holes
D. 3 holes - Answer C. 13 holes
If new machine tooling is installed, what would happen to Cp, the process capability ratio? -
Answer It would increase
Correct Answers 2025.
Genentech finds that the results of their testing indicate a gradual shift upward in the average
size of drilled holes. They were most likely using a ______ type control chart for _____ - Answer
X bar / Variable
Dayspring Manufacturing in Torrance, CA makes aftermarket competition gears for pre-1974
Volkswagen Beetles. They want to have a mean ring gear diameter of 270 mm +20mm,-30mm
with a standard deviation of 9mm. What is the Cpk for the Upper Limit and what is the Cpk for
the Lower limit, and is the process capable? - Answer 270-240/(3)(9)=1.11.
290-270/(3)(9)= 0.74
Not capable
Y&T Foods in Reno, NV found that they had all of their data within range when testing over a
large (in excess of 7) standard deviations. They assumed their process was in control. They most
likely are operating under a________ error - Answer Type II
Laseright Software discovered a number of defects in their software and counted them daily.
They plotted the number of defects after they computed an average, Upper and Lower control
limits. They plotted a _______type control chart for _______ . - Answer C chart / Attributes
Yokelight Manufacturing in Toledo, OH found that plotting time ordered charts of cylinder
diameter within a specific range helped them to detect variability beyond the range. This type
of chart is known as a _____type control chart for ________. - Answer R chart / Variables
Horeb Foundries in El Monte, CA produces cast iron covers for water meters and drain covers.
They are able to compute the proportion of defective (bad vs. good) items and are able to chart
those results. They most likely use a _____type control chart for______. - Answer P chart /
Attributes
Top Line Engineering in Grand Rapids, MI makes precision butterfly valves for high performance
fuel injection systems. They want to achieve a mean bore diameter of 48 mm +/- 0.5mm with a
standard deviation of 0.11 mm on their butterfly valves for 1991-1993 BMW M5 sedans. What is
the Cp, and is the process capable? - Answer 4.85-47.5/(6)(.11)=1.52
, Advent Pharmaceuticals in Nazareth, PA found that they had some of their data out of range
when testing over smaller (2 or fewer) standard deviations. They assumed their process was out
of control. They most likely are operating under a _______error. - Answer Type I
Two executives from Landall Manufacturing in St. Louis, MO were joking that they could make
their passenger side airbags for Mercdes S580 sedans out of chewing gum and still be ISO 9000
certified. In theory, is this possible? - Answer Yes
Endless Summer Polymers in Redondo Beach, CA makes foam board blanks for surf boards.
When they take a portion of their surfboard blanks out of production and measure them to
determine if they will pass the entire production run for sale to the customer, this is the first
step in _______ Sampling - Answer Acceptance
A machine has a standard deviation of 0.130 mm and a specification of 12.0 +/- 0.57 mm to
make holes that need to be drilled into an electrical panel. Please calculate the process
capability ratio, Cp
A. 1.53
B. 1.46
C. 0.68
D. 9.2
Is the process capable? - Answer B. 1.46 / Yes
If the machine tooling wears and the standard deviation becomes larger at a rate of 0.001 mm
per hole, how many holes can be drilled before the process becomes incapable? Please round
to 2 decimal places when solving for process capability and 3 decimal places when solving for
standard deviation.
A. 1 hole
B. 27 holes
C. 13 holes
D. 3 holes - Answer C. 13 holes
If new machine tooling is installed, what would happen to Cp, the process capability ratio? -
Answer It would increase
