Question

The expected lifetime of a television is 17 years with a standard deviation of 3. Use Chebychev's inequality to estimate the probability that television will last between 10 and 24 years.

Answer #1

Given that expected life of television is 17 years.

The expected lifetime of a television is 19 years with a
standard deviation of 2. Use Chebychev's inequality
to estimate the probability that television will last between 11
and 27 years

A probability distribution has a mean of 45 and a standard
deviation of 2. Use Chebychev's inequality to find a bound on the
probability that an outcome of the experiment lies between the
following.
(a) 41 and 49
at least ___ %
(b) 35 and 55
at least ____ %

A probability distribution has a mean of 25 and a standard
deviation of 4. Use Chebychev's inequality to find a bound on the
probability that an outcome of the experiment lies between the
following.
(a) 20 and 30
at least %
(b) 15 and 35
at least %

A manufacturer claims that his television will have an average
lifetime of at least 5 years. The standard deviation is 8 months.
64 sets were selected at random and their average lifetime was
found to be 59 months. Is the manufacturer correct? Use α =
0.025.
(If you used TI-83 please include calculations )

A) The mean lifetime of a smartphone model is 3 years with a
standard deviation of 5 months. Assume normal distribution. What
percentage of all smartphones should the manufacturer expect to
replace if they offer a warranty period of 30 months?
B) The mean lifetime of a smartphone model is 3 years with a
standard deviation of 5 months. Assume that lifetimes are normally
distributed. The CEO wants to budget for replacing not more than 5%
of the smartphones during...

suppose that probability distribution that mean 20 and
standard deviation 3. According to chebychev inequality what is the
probability that an outcome lies between 16 and 24?

The lifetime of lightbulbs produced is normally distributed with
mean 500 hours and standard deviation 50 hours. What is the
probability that a randomly chosen lightbulb will last between 440
and 620 hours?

A probability distribution has a mean of 50 and a standard
deviation of 10. Use Chebyshev's inequality to find the minimum
probability that an outcome is between 10 and 90. (Round your
answer to four decimal places.)

On average, a laptop computer will last for 3.9 years with a
standard deviation of .5 years.
17. Find the percentage of laptop computers with a life of more
than 4 years.
18. What percentage of laptop computers will last between 3.5
and 4.5 years?
19. What is the probability that a laptop computer will least
less than 3 years?
20. What percentage of laptop computers will differ from the
mean by more
than 1.5
years?

A manufacturer claims that his television will have an average
lifetime of more than 60 months. The standard deviation is seven
months. Eighty-one televisions are selected at random, and their
average lifetime was found to be 62 months. Is the manufacturer
correct? Use α=0.01
*Hypothesis test

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