Question: The time, in hours, that a copying machine may work without breaking down is a normally distributed random variable with mean 549 and standard deviation

The time, in hours, that a copying machine may work without breaking down is a normally distributed random variable with mean 549 and standard deviation 68. Find the probability that the machine will work for at least 500 hours without breaking down.

Step by Step Solution

★★★★★

3.38 Rating (176 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

X N 549 68 2 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

463-S-J-P-D (308).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

For a normally distributed random variable with mean 44 and standard deviation 16, find the probability that the value of the random variable will be above 0.

If X is a normally distributed random variable with mean -61 and standard deviation 22, find the value such that the probability that the random variable will be above it is 0.25.

If X is a normally distributed random variable with mean 120 and standard deviation 44, find a value x such that the probability that X will be less than x is 0.56.

Need to double check my answer thanks Which is not a goal of the ethical data analyst? 2 'Tom's SUV rolled over. SUVs are dangerous." This best illustrates which fallacy? Multiple Choice Multiple...

Please help me with the following questions. Thank you. Southern New Hampshire Uni x | @ 6-3 Homework: Chapter 7 (Se x Question 3 - 6-3 Homework: (X Course Hero X G take a screen shot - Google S X +...

1.A training program designed to upgrade the supervisory skills of production-line supervisors has been offered for the past five years at a Fortune 500 company.Because the program is...

A training program designed to upgrade the supervisory skills of production-line supervisors has been offered for the past five years at a Fortune 500 company.Because the program is...

16. (-/2.77 Points DETAILS BBUNDERSTAT12 6.3.026. MY NOTES ASK YOUR TEACHER Porphyrin is a pigment in bloed protoplasm and other body flads that incants body energy and storage tatbe a random...

Problem 7 The amount of time spent by workers of a company to perform a certain task is a normally distributed random variable with a mean of 7.5 hours and a standard deviation of 2.1 hours. (b) (3...

Bill is single, has gross income of $65,000, and incurred the following expenses: Charitable contributions $2,000 Taxes and interest on home $8,000 State taxes $1,000 Medical expenses $3,000...

Tony Masasi started his own consulting firm, Masasi Company, on June 1, 2010. The trial balance at June 30 is shown below. In addition to those accounts listed on the trial balance, the chart of...

An auditor includes a separate paragraph in an otherwise unmodified financial statement audit report to emphasize that the entity being reported upon had significant transactions with related...

The part-time faculty members at Farber College are disturbed by the college administrations decision to freeze their pay. They are paid a flat fee for each course they teach, and that fee has not...

The following data represent the percentage of people without health insurance for the 50 states and the District of Columbia in 2009. With the rst class having a lower class limit of 4 and a class...

The table shows the tax, in dollars, on a pack of cigarettes in each of the 50 states and Washington, DC, as of September 2010. Note: The state with the lowest tax is Virginia and the state with the...

A dividend is a payment from a publicly traded company to its shareholders. The dividend yield of a stock is determined by dividing the annual dividend of a stock by its price. The following data...

Round Table Rental Yards provides construction equipment, trailers, crutches, etc., on short term rentals. Historically, Art, the owner, has purchased the items that he rents out, but his business...

A flywheel connected to a punching machine has to supply energy of 400 Nm while running at a mean angular speed of 20 rad/s. If the total fluctuation of speed is not to exceed 2%, the mass moment of...

Which of the following is measured with a categorical nominal scale? Mutual funds' investment style. Mutual funds' asset allocation weights. Mutual funds' age class. None of the above.