Question

The number of weaving errors in a twenty-foot by ten-foot roll of carpet has a mean of 0.8. What is the probability of observing less than 2 errors in the carpet? Round your answer to four decimal places.

Answer #1

The number of weaving errors in a twenty-foot by ten-foot roll
of carpet has a mean of 0.5. What is the probability of observing
exactly 2 errors in the carpet? round your answer to four decimal
places.

The number of weaving errors in a twenty-foot by
ten-foot roll of carpet has a mean of 0.8. What is the probability
of observing more than 4 errors in the carpet?

The number of surface flaws in a plastic roll used in the
interior of automobiles has a Poisson distribution with a mean of
0.09 flaw per square foot of plastic roll. Assume an automobile
interior contains 12 square feet of plastic roll. Round your
answers to four decimal places (e.g. 98.7654).
(a) What is the probability that there are no
surface flaws in an auto’s interior?
(b) If 17 cars are sold to a rental company, what
is the probability...

The number of surface flaws in a plastic roll used in the
interior of automobiles has a Poisson distribution with a mean of
0.09 flaw per square foot of plastic roll. Assume an automobile
interior contains 8 square feet of plastic roll. Round your answers
to four decimal places (e.g. 98.7654). (a) What is the probability
that there are no surface flaws in an auto’s interior? (b) If 15
cars are sold to a rental company, what is the probability...

The number of spots on a fabric is .05 defects per square
foot.
A) Twenty square foot cloth rolls are produced. What is the
probability that the roll has no defects.
B) If 10 rounds of cloth are inspected, what is the
probability that the number of rolls without defect is between 4
and 6 rolls inclusive.
C) What is the probability that you have to inspect 10 rolls
before finding 3 rolls without defects.

The mean number of errors per page made by a member of the word
processing pool for a large company is thought to be 2.4 with the
number of errors distributed according to a Poisson distribution.
If a page is examined, what is the probability that more than two
errors will be observed?
The probability that more than two errors will be observed is
.
(Round to four decimal places as needed.)

TV sets: According to the Nielsen Company, the mean number of TV
sets in a U.S. household in 2013 was 2.24. Assume the standard
deviation is1.1 . A sample of 80 households is drawn. Use the
Cumulative Normal Distribution Table if needed.
A. What is the probability that the sample mean number of TV
sets is greater than 2? Round your answer to four decimal
places.
B. What is the probability that the sample mean number of TV
sets is...

TV sets: According to the Nielsen Company, the
mean number of TV sets in a U.S. household in 2013 was 2.24. Assume
the standard deviation is 1.3. A sample of 90 households is
drawn.
A) What is the probability that the sample mean number of TV
sets is greater than 2? Round your answer to four decimal
places.
B) What is the probability that the sample mean number of TV
sets is between 2.5and 3? Round your answer to four...

A carpet expert believes that 5% of Persian carpets are
counterfeits. If the expert is right, what is the probability that
the proportion of counterfeits in a sample of 460 Persian carpets
would be less than 6%? Round your answer to four decimal
places.

The number of flaws per square yard in a type of carpet material
varies with mean 1.3 flaws per square yard and standard deviation 1
flaws per square yard. This population distribution cannot be
normal, because a count takes only whole-number values. An
inspector studies 167 square yards of the material, records the
number of flaws found in each square yard, and calculates
x, the mean number of flaws per square yard inspected. Use
the central limit theorem to find...

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