Homework Answers
Add Answer to:
Problem 2.2 f) The average useful life of a typical dishwasher is 10 years with standard...
A dishwasher has a mean life of 12 years with an estimated standard deviation of 1.25...
A dishwasher has a mean life of 12 years with an estimated standard deviation of 1.25 years "Appliance life expectancy," 2013). Assume the life of a dishwasher is normally distributed. a.) True or False: The random variable x defines the life expectancy of a dishwasher b.) Find the probability that a dishwasher will last more than 15 years. c.) Find the probability that a dishwasher will last less than 8 years. d.) Find the probability that a dishwasher will last...
Question 2 (1 point) A dishwasher has a mean life of 12 years with an estimated...
Question 2 (1 point) A dishwasher has a mean life of 12 years with an estimated standard deviation of 1.25 years ("Appliance life expectancy," 2013). Assume the life of a dishwasher is normally distributed. a.) True or False: The random variable x defines the life expectancy of a dishwasher b.) Find the probability that a dishwasher will last more than 15 years. c.) Find the probability that a dishwasher will last less than 8 years. d.) Find the probability that...
The average life of a certain type of small motor is 10 years with a standard...
The average life of a certain type of small motor is 10 years with a standard deviation of 2 years. The manufacturer replaces free all motors that fail while under guarantee. If she is willing to replace only 3% of the motors that fail, how long a guarantee should be offered? Assume that the lifetime of a motor follows a normal distribution.
The average life of a certain type of small motor is 10 years with a standard...
The average life of a certain type of small motor is 10 years with a standard deviation of 2 years. The manufacturer replaces free all motors that fail while under guarantee. If she is willing to replace 3% of the motors that fail, how long a guarantee (in years) should she offer? You may assume that the lives of the batteries are normally distributed. A properly labeled figure of the normal distribution curve and x and z values is required...
The average life of a certain type of small engine is 10 years, with a standard...
The average life of a certain type of small engine is 10 years, with a standard deviation of 2 years. The manufacturer replaces for free all motors that fail within the warranty period. If you were willing to replace only 3% of failed engines, how long a warranty should you offer? Suppose that the duration of an engine follows a normal distribution. Answer with 4 decimals.
7. The average life expectancy of dishwashers produced by a company is 8 years with a standard deviation of 6 month...
7. The average life expectancy of dishwashers produced by a company is 8 years with a standard deviation of 6 months. Assume that the lives of dishwashers are normally distributed. a. What is the probability that a randomly selected dishwasher will have a life expectancy of at least 7 years? b. Dishwashers that fail operating in less than 4 1/2 years will be replaced free of charge. What percent of dishwashers are expected to be replaced free of charge? c....
Assume in analyzing alternative proposals that Proposal F has a useful life of 6 years and...
Assume in analyzing alternative proposals that Proposal F has a useful life of 6 years and Proposal J has a useful life of 9 years. What is one widely used method to make the net present values of the proposals comparable? Ignore the useful lives of 6 and 9 years and find an average (7 1/2 years). Ignore the useful lives of 6 and 9 years and compute the average rate of return. Adjust the life of Proposal J to...
On average, indoor cats live to 12 years old with a standard deviation of 2.7 years....
On average, indoor cats live to 12 years old with a standard deviation of 2.7 years. Suppose that the distribution is normal. Let X = the age at death of a randomly selected indoor cat. Round answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that an indoor cat dies when it is between 7.5 and 10.4 years old. c. The middle 20% of indoor cats' age of...
Susan has been on a bowling team for 14 years. After examining all of her scores...
Susan has been on a bowling team for 14 years. After examining all of her scores over that period of time, she finds that they follow a normal distribution. Her average score is 225, with a standard deviation of 13. If during a typical week Susan bowls 16 games, use an appropriate normal transformation to calculate the probability that her average score for the week is between 222 and 228.
Fix my solution with R Studio :) The average life a manufacturer's blender is 5 years,...
Fix
my solution with R Studio :)
The average life a manufacturer's blender is 5 years, with a standard deviation of 1 year. Assuming that the lives of these blenders follow approximately a normal distribution, find the probability that the mean life a random sample of 25 such blenders falls between 4.5 and 5.2 years. tudy resource wa ia CourseHero.com a) 0.1587 b) 0.8413 c) 0.8351 d)0.2707 e)0.1649 f) None of the above. 3. Studo Probab, dhemy less f S1...
A dishwasher has a mean life of 12 years with an estimated standard deviation of 1.25 years "Appliance life expectancy," 2013). Assume the life of a dishwasher is normally distributed. a.) True or False: The random variable x defines the life expectancy of a dishwasher b.) Find the probability that a dishwasher will last more than 15 years. c.) Find the probability that a dishwasher will last less than 8 years. d.) Find the probability that a dishwasher will last...
Question 2 (1 point) A dishwasher has a mean life of 12 years with an estimated standard deviation of 1.25 years ("Appliance life expectancy," 2013). Assume the life of a dishwasher is normally distributed. a.) True or False: The random variable x defines the life expectancy of a dishwasher b.) Find the probability that a dishwasher will last more than 15 years. c.) Find the probability that a dishwasher will last less than 8 years. d.) Find the probability that...
7. The average life expectancy of dishwashers produced by a company is 8 years with a standard deviation of 6 months. Assume that the lives of dishwashers are normally distributed. a. What is the probability that a randomly selected dishwasher will have a life expectancy of at least 7 years? b. Dishwashers that fail operating in less than 4 1/2 years will be replaced free of charge. What percent of dishwashers are expected to be replaced free of charge? c....
Fix
my solution with R Studio :)
The average life a manufacturer's blender is 5 years, with a standard deviation of 1 year. Assuming that the lives of these blenders follow approximately a normal distribution, find the probability that the mean life a random sample of 25 such blenders falls between 4.5 and 5.2 years. tudy resource wa ia CourseHero.com a) 0.1587 b) 0.8413 c) 0.8351 d)0.2707 e)0.1649 f) None of the above. 3. Studo Probab, dhemy less f S1...
Most questions answered within 3 hours.
-
Is the rate of human population growth the most urgent issue we
face, or is there...
asked 2 minutes ago -
A smoke detector system uses two devices, A and B. If smoke is
present, the probability...
asked 4 minutes ago -
The fact that there are high cache miss rates for programs with
binary executables of 100s...
asked 5 minutes ago -
ACME manufacturing is a low-cost producer of a single, commodity
product: RGL-01. Standard overhead cost information...
asked 7 minutes ago -
answer the below qestion in term of marketing in “personal
selling steps”
( Question )
Consider...
asked 27 minutes ago -
Why
are large,multinational firms more likely to be concerned about
CSR?Why are lifestyle brands more susceptible...
asked 26 minutes ago -
Under normal use conditions, the Mean Time To Failure of a
heating coil can be modeled...
asked 28 minutes ago -
A student holds a ruler by one end (x=0 where the student holds
it). The student...
asked 28 minutes ago -
People are most likely to believe their ancestors play an active
role in their lives in...
asked 29 minutes ago -
A speeding car is traveling along a straight road with a
constant speed of 100 km/hour....
asked 46 minutes ago -
When 60.1 gg of calcium is reacted with nitrogen gas, 31.7 gg of
calcium nitride is...
asked 51 minutes ago -
The random variable X is exponentially distributed, where X
represents the time it takes for a...
asked 1 hour ago