Question
In: Statistics and Probability
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of 36 months before certain electronic components deteriorate, causing the watch to become unreliable. The standard deviation of watch lifetimes is 5 months, and the distribution of lifetimes is normal.
(a) If Accrotime guarantees a full refund on any defective watch for 2 years after purchase, what percentage of total production will the company expect to replace? (Round your answer to two decimal places.) %
(b) If Accrotime does not want to make refunds on more than 12% of the watches it makes, how long should the guarantee period be (to the nearest month)?
months
Solutions
orchestra answered 1 year agoRelated Solutions
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of 36
months before certain electronic components deteriorate, causing
the watch to become unreliable. The standard deviation of watch
lifetimes is 5months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace? (Round your answer to two...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of 35
months before certain electronic components deteriorate, causing
the watch to become unreliable. The standard deviation of watch
lifetimes is 4 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace? (Round your answer to...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of 30
months before certain electronic components deteriorate, causing
the watch to become unreliable. The standard deviation of watch
lifetimes is 5 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace? (Round your answer to...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of 32
months before certain electronic components deteriorate, causing
the watch to become unreliable. The standard deviation of watch
lifetimes is 5 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace? (Round your answer to...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of 30
months before certain electronic components deteriorate, causing
the watch to become unreliable. The standard deviation of watch
lifetimes is 4 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace? (Round your answer to...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of 26
months before certain electronic components deteriorate, causing
the watch to become unreliable. The standard deviation of watch
lifetimes is 4 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace? (Round your answer to...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of
30 months before certain electronic components
deteriorate, causing the watch to become unreliable. The standard
deviation of watch lifetimes is 5 months, and the
distribution of lifetimes is normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of
total production will the company expect to replace? (Round your
answer to...
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have...
Accrotime is a manufacturer of quartz crystal watches. Accrotime
researchers have shown that the watches have an average life of 26
months before certain electronic components deteriorate, causing
the watch to become unreliable. The standard deviation of watch
lifetimes is 4 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace? (Round your answer to...
29) Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches...
29) Accrotime is a manufacturer of quartz crystal watches.
Accrotime researchers have shown that the watches have an average
life of 30 months before certain electronic components deteriorate,
causing the watch to become unreliable. The standard deviation of
watch lifetimes is 5 months, and the distribution of lifetimes is
normal. (a) If Accrotime guarantees a full refund on any defective
watch for 2 years after purchase, what percentage of total
production will the company expect to replace? (Round your answer...
A domestic manufacturer of watches purchases quartz crystals from a Swiss firm. The crystals are shipped in lots of 1,000.
A domestic manufacturer of watches purchases quartz crystals from a Swiss firm. The crystals are shipped in lots of 1,000. The acceptance sampling procedure uses 15 randomly selected crystals
If
p0 = 0.01
and
p1 = 0.08,
what are the producer's and consumer's risks for each sampling plan in part (a)? (Round your answers to four decimal places.)
c
Producer's Risk
Consumer's Risk
0
1
2
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