Question
An organization installs new garage doors on residential homes. Suppose the installation time for a residence...
An organization installs new garage doors on residential homes. Suppose the installation time for a residence follows the uniform distribution with a minimum time of 190 minutes and a maximum time of 380 minutes. Complete parts a through e.
a. What is the probability that an installation will require less than 55 hours to complete?
The probability is ________.
(Round to four decimal places as needed.)
b. What is the probability that an installation will require more than 44 hours to complete?
The probability is ________. (Round to four decimal places as needed.)
c. What is the probability that an installation will require between 270 and 350 minutes to complete?
The probability is ___________.
(Round to four decimal places as needed.)
d. Calculate the mean and standard deviation for this distribution.
The mean of the given uniform distribution is μ =_______.
(Type an integer or a decimal. Do not round.)
The standard deviation of the given uniform distribution is σ=_______.
(Round to four decimal places as needed.)
e. The company has a goal that 80% of the time, the installation time for a residence will be less than 6
hours. Is this goal being achieved?
The goal (is not; is) being achieved, because the area under the distribution to the left of 6 hours is ______.
(Round to four decimal places as needed.)
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
The shape of the distribution of the time is required to get an oil change at...
The shape of the distribution of the time is required to get an
oil change at a 15-minute oil-change facility is unknown. However,
records indicate that the mean time is 16.2 minutes, and the
standard deviation is 4.2 minutes. Complete parts (a) through
(c).
(a) To compute probabilities regarding the sample mean using the
normal model, what size sample would be required?
A. The sample size needs to be less than or equal to 30.
B. The sample size needs...
The frequency in which a restaurant receives on-line delivery orders follows an exponential distribution with a...
The frequency in which a restaurant receives on-line delivery
orders follows an exponential distribution with a mean of 10.36
minutes between orders. Using this information, complete parts
(a) through (f) for this
question.
a) The probability that the restaurant will
receive their next on-line delivery order in less than 5.1 minutes
is
(Round to four decimal places as needed.)
b) The probability that the restaurant will
wait between 9 and 11.4 minutes after getting a new on-line
delivery order is...
The time needed to complete a final examination in a particular college course is normally distributed...
The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions.
(a)
What is the probability of completing the exam in one hour or
less? (Round your answer to four decimal places.)
(b)
What is the probability that a student will complete the exam in
more than 60 minutes but less than 75 minutes? (Round your answer
to...
he time needed to complete a final examination in a particular college course is normally distributed...
he time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions. (a) What is the probability of completing the exam in
one hour or less? (Round your answer to four decimal places.) (b)
What is the probability that a student will complete the exam in
more than 60 minutes but less than 65 minutes? (Round your answer
to...
The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a...
The amounts of time per workout an athlete uses a stairclimber
are normally distributed, with a mean of
2424
minutes and a standard deviation of
66
minutes. Find the probability that a randomly selected athlete
uses a stairclimber for (a) less than
2121
minutes, (b) between
2424
and
3333
minutes, and (c) more than
4040
minutes.
(a) The probability that a randomly selected athlete uses a
stairclimber for less than
2121
minutes is
nothing.
(Round to four decimal places as...
The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a...
The amounts of time per workout an athlete uses a stairclimber
are normally distributed, with a mean of
22 minutes and a standard deviation of 7 minutes. Find the
probability that a randomly selected athlete uses a stairclimber
for (a) less than 17 minutes, (b) between 22 and 31
minutes, and (c) more than 30 minutes.
(a) The probability that a randomly selected athlete uses a
stairclimber for less than 17 minutes is =
(Round to four decimal places as needed.)...
The shape of the distribution of the time required to get an oil change at a...
The shape of the distribution of the time required to get an oil
change at a 10 -minute oil-change facility is unknown. However,
records indicate that the meantime is 11.8 minutes , and the
standard deviation is 4.6 minutes.Complete parts (a) through (c)
below.
(a) To compute probabilities regarding the sample mean using the
normal model, what size sample would be required?
Choose the required sample size below.
A.
The sample size needs to be greater than 30.
B.
Any...
You may need to use the appropriate appendix table to answer this question. The time needed...
You may need to use the appropriate appendix table to answer
this question.
The time needed to complete a final examination in a particular
college course is normally distributed with a mean of 80 minutes
and a standard deviation of 10 minutes. Answer the following
questions.
(a)What is the probability of completing the exam in one hour or
less? (Round your answer to four decimal places.)
(b)What is the probability that a student will complete the exam
in more than...
The time between unplanned shutdowns of a power plant has an exponential distribution with a mean...
The time between unplanned shutdowns of a power plant has an
exponential distribution with a mean of 10 days. Find the
probability that the time between two unplanned shutdowns is
a. less than 13 days.
b. more than 23 days.
c. less than 8 days.
a. The probability that the time between two unplanned shutdowns
is less than 13 days is . (Round to four decimal places
as needed.) b. The probability that the time between two unplanned
shutdowns is more...
An airliner carries 100 passengers and has doors with a height of 72 in. Heights of...
An airliner carries 100 passengers and has doors with a height
of 72 in. Heights of men are
normally distributed with a mean of 69.0 in and a standard
deviation of 2.8 in.
If half of the 100 passengers are men, find the probability that
the mean height of the 50 men is less than 72 in.
The probability is
.
(Round to four decimal places as needed.)
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 7 minutes ago
asked 12 minutes ago
asked 13 minutes ago
asked 27 minutes ago
asked 48 minutes ago
asked 49 minutes ago
asked 56 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago