OM 375 EXAM 2 with verified answers
graded A+ already passed
nonconformity - correct answer ✔✔defect in a product; there can be more than one per
product (scratches on the screen of phone)
control charts for nonconforming units - correct answer ✔✔-np and p charts
nonconforming unit - correct answer ✔✔product that does not function (iPhone broken)
p charts - correct answer ✔✔proportion (or fraction) of items that are defective
np charts - correct answer ✔✔number of items that are defective
control charts for nonconformities - correct answer ✔✔-c and u charts
c charts - correct answer ✔✔total number of defects
u charts - correct answer ✔✔total number of defects per item
control charts for demerits - correct answer ✔✔u chart
-it accounts for severity of nonconformities
-it combines nonconformities on a weighted basis
, attribute - correct answer ✔✔classify as nonconforming if length, width, or height is not within
specifications and maintain one attribute chart instead of 3 variable charts
general rule for np and p charts - correct answer ✔✔n>=5/p bar
The Cp index measures the actual process capability. - correct answer ✔✔false, thats Cpk
The Cpk index considers both precision and accuracy. - correct answer ✔✔true
In the hypothesis testing, you cannot reject the null hypothesis if the likelihood of the observed
sample mean is - correct answer ✔✔greater than 5%
The process is called a centered process if - correct answer ✔✔u=(USL+LSL)/2
Process capability is the ability of the process to meet - correct answer ✔✔Customer
Specifications
Process capability is the ability to meet the control limits. - correct answer ✔✔false
In the hypothesis testing, you reject the null hypothesis if the likelihood of the observed sample
mean is - correct answer ✔✔less than 5%
ATI (Average Total Inspection) curve increases in the defective rate p. - correct answer ✔✔true
When designing an acceptance sampling plan for a given producer's risk (), if you choose large
acceptance number c, then the required sample size n gets - correct answer ✔✔larger
graded A+ already passed
nonconformity - correct answer ✔✔defect in a product; there can be more than one per
product (scratches on the screen of phone)
control charts for nonconforming units - correct answer ✔✔-np and p charts
nonconforming unit - correct answer ✔✔product that does not function (iPhone broken)
p charts - correct answer ✔✔proportion (or fraction) of items that are defective
np charts - correct answer ✔✔number of items that are defective
control charts for nonconformities - correct answer ✔✔-c and u charts
c charts - correct answer ✔✔total number of defects
u charts - correct answer ✔✔total number of defects per item
control charts for demerits - correct answer ✔✔u chart
-it accounts for severity of nonconformities
-it combines nonconformities on a weighted basis
, attribute - correct answer ✔✔classify as nonconforming if length, width, or height is not within
specifications and maintain one attribute chart instead of 3 variable charts
general rule for np and p charts - correct answer ✔✔n>=5/p bar
The Cp index measures the actual process capability. - correct answer ✔✔false, thats Cpk
The Cpk index considers both precision and accuracy. - correct answer ✔✔true
In the hypothesis testing, you cannot reject the null hypothesis if the likelihood of the observed
sample mean is - correct answer ✔✔greater than 5%
The process is called a centered process if - correct answer ✔✔u=(USL+LSL)/2
Process capability is the ability of the process to meet - correct answer ✔✔Customer
Specifications
Process capability is the ability to meet the control limits. - correct answer ✔✔false
In the hypothesis testing, you reject the null hypothesis if the likelihood of the observed sample
mean is - correct answer ✔✔less than 5%
ATI (Average Total Inspection) curve increases in the defective rate p. - correct answer ✔✔true
When designing an acceptance sampling plan for a given producer's risk (), if you choose large
acceptance number c, then the required sample size n gets - correct answer ✔✔larger
