1 answer

Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57...

Question:

Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57 hours and a standard devi
Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57 hours and a standard deviation of 3.5 hours. With this information, answer the following questions. (a) What proportion of light bulbs will last more than 61 hours? (b) What proportion of light bulbs will last 51 hours or less? (c) What proportion of light bulbs will last between 59 and 61 hours? (d) What is the probability that a randomly selected light bulb lasts less than 46 hours? (b) The proportion of light bulbs that last 51 hours or less is ... (Round to four decimal places as needed.) (c) The proportion of light bulbs that lasts between 59 and 61 hours is (Round to four decimal places as needed.) (d) The probability that a randomly selected light bulbs lasts less than 46 hours is (Round to four decimal places as needed.)

Answers

Soln P(x551) = P(x-57 X-57 s 3.5 51-57 3.5 0(-1.65) | –0(165) n 0.0432 P(K 595x561) - P(xs 61)-P(x559) X-57561-57 3.5 19:57)

.

Similar Solved Questions

1 answer
Computer Science Midterm Exam Review Questions 11. What is a pointer? 12. Are pointers and array...
Computer Science Midterm Exam Review Questions 11. What is a pointer? 12. Are pointers and array names the same thing? How are they alike? How do they differ?...
1 answer
A U-238 atom undergoes alpha decay. The daughter atom then undergoes beta minus decay into a...
A U-238 atom undergoes alpha decay. The daughter atom then undergoes beta minus decay into a second daughter atom. What is the second daughter atom? Group of answer choices U-235 Th-238 Th-234 Pa-234 Rn-222...
1 answer
Az 6) Find and when s = = 1 and t = 2 for the following...
az 6) Find and when s = = 1 and t = 2 for the following functions: z = x3 + x?y*, x = st”, y=8²t...
1 answer
• What is Project gates ?
• What is Project gates ?...
1 answer
The patient recovery time from a particular surgical procedure is normally distributed with a mean of...
The patient recovery time from a particular surgical procedure is normally distributed with a mean of 4 days and a standard deviation of 1.8 days. Let X be the recovery time for a randomly selected patient. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N |...
1 answer
Having trouble finding y(t) NOT Correct (1 point) Consider the initial value problem y"+16y 48t, y(0)3,...
having trouble finding y(t) NOT Correct (1 point) Consider the initial value problem y"+16y 48t, y(0)3, /(0)-9. a. Take the Laplace transform of both sides of the given differential equation to create the corresponding algebraic equation. Denote the Laplace transform of y(t) by Y(s). Do not mov...
1 answer
7. If y, and y2 are a fundamental set of solutions of t2y"-2/ + (3 +...
7. If y, and y2 are a fundamental set of solutions of t2y"-2/ + (3 + t)y = 0 and if won,n)(2) = 4, find the value of W(vi.v2)(3)....
1 answer
Stew has a pitching algorithm that never changes. In the first pitch of each plate appearance,...
Stew has a pitching algorithm that never changes. In the first pitch of each plate appearance, he throws a fastball 70% of the time. The following pitch selection is determined *only* by the type of pitch immediately preceding it. If the previous pitch was off-speed, he will throw a fastball 80% of ...
1 answer
Sherrod, Inc., reported pretax accounting income of $78 million for 2021. The following information relates to...
Sherrod, Inc., reported pretax accounting income of $78 million for 2021. The following information relates to differences between pretax accounting income and taxable income: Income from installment sales of properties included in pretax accounting income in 2021 exceeded that reported for tax pur...
1 answer
Question 3: Rankine Steam Power Cycle with a Closed Feedwater Heater Turbine TVnet Boiler 6 1-y...
Question 3: Rankine Steam Power Cycle with a Closed Feedwater Heater Turbine TVnet Boiler 6 1-y Condenser Qout Pump Closed Feedwater Heater 7 1 W, Trap Draw this process on a Ts diagram....
1 answer
A block moves 0.600 meters up along a 30 degree plane with no friction while a...
A block moves 0.600 meters up along a 30 degree plane with no friction while a force with a magnitude of 200.0 N is acting on it at a 30 degree angle (this is an addtion to the 30 degree angle that the block is already moving along). (a) What is the work done by the net force acting on the block? (b...
1 answer
F3–2. Indicate the points on the stress-strain diagram which represent the proportional limit and the ultimate...
F3–2. Indicate the points on the stress-strain diagram which represent the proportional limit and the ultimate stress. В С F3–2...
1 answer
Review what you have learned about the following historical figures in infectious disease: Ignaz Semmelweis Joseph...
Review what you have learned about the following historical figures in infectious disease: Ignaz Semmelweis Joseph Lister Louis Pasteur Edward Jenner Florence Nightingale For your first post, research one of these historical figures and describe his/her role in the evolution of infectious disease ...
1 answer
3.) A series of chromatographic peaks are referred to as a chromatogram. a.) Describe the general...
3.) A series of chromatographic peaks are referred to as a chromatogram. a.) Describe the general shape of a chromatographic peak? b.) How does the term resolution relate to a chromatographic separation? Include as part of your answer the two factors that determine resolution? 4.) List the five basi...
1 answer
Question 2 10 pts An apparel manufacturing plant has estimated the variable cost to be $3.40...
Question 2 10 pts An apparel manufacturing plant has estimated the variable cost to be $3.40 per unit. Fixed costs are $700,000 per year. Forty percent of its business is with one preferred customer and the customer is charged at cost. The remaining 60% of the business is with several different cust...
1 answer
How do you find the equation of a line that Contains point (-2, -3) and is perpendicular to 5x-2y=8?
How do you find the equation of a line that Contains point (-2, -3) and is perpendicular to 5x-2y=8?...
1 answer
The family of a patient with Alzheimer's disease (AD) reports increasing symptoms of paranoia in the...
The family of a patient with Alzheimer's disease (AD) reports increasing symptoms of paranoia in the patient. Which nursing response is most appropriate? A. "There is often an underlying psychiatric condition with AD." B. "Some patients with dementia may - experience paranoia, delusi...
1 answer
A company's stock recently paid a dividend of $4.02 and expects dividends to grow annually at...
A company's stock recently paid a dividend of $4.02 and expects dividends to grow annually at a rate of 6.2%. Based on the CAPM, the required return for this stock is estimated to be 13.0%. Based on this, the maximum that you would be willing to pay for the stock is $__.__. Round your answer to ...