Question
A manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are more than 2 standard deviations from the mean.
A manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are more than
2
standard deviations from the mean. The quality-control engineer knows that the bolts coming off the assembly line have mean length of
8
cm with a standard deviation of
0.05
cm. For what lengths will a bolt be destroyed?
Question content area bottom
Part 1
Select the correct choice below and fill in the answer box(es) to complete your choice.
(Round to one decimal place as needed.)
A.
A bolt will be destroyed if the length is less than
enter your response here
cm.
B.
A bolt will be destroyed if the length is between
enter your response here
cm and
enter your response here
cm.
C.
A bolt will be destroyed if the length is greater than
enter your response here
cm.
D.
A bolt will be destroyed if the length is less than
enter your response here
cm or greater than
enter your response here
cm.
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