The lifetime of a laser (in hours) is lognormally distributed with = 8 and 2
Question:
The lifetime of a laser (in hours) is lognormally distributed with μ = 8 and σ2 = 2.4. Two such lasers are operating independently.
a. Use a simulated sample of size 1000 to estimate the probability that the sum of the two lifetimes is greater than 20,000 hours.
b. Estimate the probability that both lasers last more than 3000 hours.
c. Estimate the probability that both lasers fail before 10,000 hours.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 50% (6 reviews)
a 02...View the full answer
Answered By
Somshukla Chakraborty
I have a teaching experience of more than 4 years by now in diverse subjects like History,Geography,Political Science,Sociology,Business Enterprise,Economics,Environmental Management etc.I teach students from classes 9-12 and undergraduate students.I boards I handle are IB,IGCSE, state boards,ICSE, CBSE.I am passionate about teaching.Full satisfaction of the students is my main goal.
I have completed my graduation and master's in history from Jadavpur University Kolkata,India in 2012 and I have completed my B.Ed from the same University in 2013. I have taught in a reputed school of Kolkata (subjects-History,Geography,Civics,Political Science) from 2014-2016.I worked as a guest lecturer of history in a college of Kolkata for 2 years teaching students of 1st ,2nd and 3rd year. I taught Ancient and Modern Indian history there.I have taught in another school in Mohali,Punjab teaching students from classes 9-12.Presently I am working as an online tutor with concept tutors,Bangalore,India(Carve Niche Pvt.Ltd.) for the last 1year and also have been appointed as an online history tutor by Course Hero(California,U.S) and Vidyalai.com(Chennai,India).
4.00+
2+ Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Mathematics questions
-
The lifetime (in days) of a certain electronic component that operates in a high-temperature environment is lognormally distributed with = 1.2 and = 0.4. a. Find the mean lifetime. b. Find the...
-
There are two competing designs for a certain semiconductor circuit. The lifetime of the first (in hours) is exponentially distributed with = 10 4 , and the lifetime of the second is lognormally...
-
A system consists of components A and B connected in series, as shown in the following schematic illustration. The lifetime in months of component A is lognormally distributed with μ =...
-
Explain why learning reduces the effective marginal cost of production. If firms set prices in proportion to their marginal costs, as suggested by the Economics Primer, how can learning firms ever...
-
An investigator wishes spectral lines in a spectrum to be thin crescents. What change in the spectroscope will accomplish this?
-
In 2005, Mr. Earl, a single taxpayer, contributed $45,000 in exchange for 500 shares of DB stock. In 2008, he paid $40,000 to another shareholder to purchase 1,000 more DB shares. All DBs stock...
-
Describe the content of an OFR statement in UK financial statements and discuss whether it should be made mandatory, more prescriptive and audited.
-
The following changes in account balances and other information for 2007 were taken from the accounting records of the Noble Company: Other information: Net income was $9,900. Dividends were declared...
-
You have just been hired as a financial analyst for Lydex Company, a manufacturer of safety helmets. Your boss has asked you to perform a comprehensive analysis of the companys financial statements,...
-
The 9 companies are drawn from the following 9 different industries: Liquor producer and distributor Discount airline Commercial bank (items fitted into the same categories as the non-financial...
-
Among all the income-tax forms filed in a certain year, the mean tax paid was $2000 and the standard deviation was $500. In addition, for 10% of the forms, the tax paid was greater than $3000. A...
-
Refer to Exercise 4. What is the probability that in a sequence of 10 days, four green lights, one yellow light, and five red lights are encountered? Refer to Exercise 4. A traffic light at a certain...
-
In what ways does strategic leadership differ from non-strategic leadership? In what ways do these distinctions differ?
-
In determining the potential impairment of goodwill, which of the following would not be an appropriate methodology to estimate the fair value of a report- ing entity? Assume the reporting entity is...
-
Which of the following is not considered a related entity transaction for account- ing purposes? A transaction between: a. A company and a separate entity controlled by the sister-in-law of the com-...
-
Which of the following is not a procedure that an auditor would use in perform- ing an audit designed to identify and account for related entity transactions? a. Send confirmations to all customers...
-
Which of the following statements is correct regarding transactions between a company and a major customer that accounts for more than 10 percent of the company's sales? a. The profit from such...
-
How are the components of international strategy (scope of operations, resource deployment, distinctive competence, and synergy) likely to vary across different types of corporate strategy...
-
Why is the ownership assertion a key risk in the payroll process? a. The year-end accruals are small so they may be incomplete. b. Payroll duties cannot easily be segregated in most businesses. c....
-
Suppose Green Network Energy needs to raise money to finance its new manufacturing facility, but their CFO does not think the company is financially capable of making the periodic interest payments...
-
The article Determination of Carboxyhemoglobin Levels and Health Effects on Officers Working at the Istanbul Bosphorus Bridge (G. Kocasoy and H. Yalin, Journal of Environmental Science and Health,...
-
The following MINITAB output presents the results of a hypothesis test for a population proportion p. a. Is this a one-tailed or two-tailed test? b. What is the null hypothesis? c. Can H 0 be...
-
Refer to Exercise 13 in Section 5.3. Can you conclude that the mercury content is less than 0.3 ppm? Refer to Exercise 13 Ten samples of coal from a Northern Appalachian source had an average mercury...
-
Ivanhoe Company had the following transactions pertaining to its short-term stock investments. Jan. 1 June 1 Sept. 15 Purchased 1,000 shares of Oriole Company stock for $24,500 cash. Received cash...
-
8 ball Enterprises manufacturers and sales billiard and pool tables and related accessories a product line of pool balls with hockey team logos was launched recently but it's still unclear whether...
-
What is the applicable accounting framework ( Standards) for blackrock 2020 Annual Report?
Study smarter with the SolutionInn App