Question

In: Statistics and Probability

Only  20% of the people in a certain city believe that its public transit system is adequate....

Only  20% of the people in a certain city believe that its public transit system is adequate. If  n  = 10 persons are selected at random,

a. using binomial distribution to find the probability exactly 3 will think that the system is adequate.

b. What is the probability that the fist person who  think that the system is adequate is the third person selected?

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

A city has constructed a transit system hub downtown. It anticipated that in 20 years the...
A city has constructed a transit system hub downtown. It anticipated that in 20 years the hub will require renovation at a cost of $400,000.Rent for shops at the station is charged on an annual basis each year begining in year 1and will increase by $50 each year following.Given the rent is deposited at the end of each year into an investment account earning 5% intrest.How much should the initial rent collected be(in year 1)to just cover the cost of...
The City of Boston is considering adding new buses for its current mass-transit system that links...
The City of Boston is considering adding new buses for its current mass-transit system that links from the Hartsfield International Airport to major city destinations on a nonstop basis. The total investment package is worth $6 million and expected to last 9 years with a $840,000 salvage value. The annual operating and maintenance costs for buses would be $1 million during the first year, and will grow by 7% each year over the previous year thereafter. If the system is...
You are now ready to play the part of the manager of the public transit system....
You are now ready to play the part of the manager of the public transit system. Your finance officer has just advised you that the system faces a deficit. Your board does not want you to cut service, which means that you cannot cut costs. Your only hope is to increase revenue. Would a fare increase boost revenue? You consult the economist on your staff who has researched studies on public transportation elasticities. She reports that the estimated price elasticity...
The City of G is considering building a light rail transit (LRT) system similar to the...
The City of G is considering building a light rail transit (LRT) system similar to the one recently constructed in City KW. You have been asked to conduct a cost benefit analysis of the project. You have some data about the KW LRT project: Present value of annual net benefits (to KW residents) =$620 million Construction costs (paid by KW residents) (t=0) =$820 million Grant from the provincial government (t=0) =$300 million Grant from the federal government (t=0) =$250 million...
A large city wants to conduct a survey about its public transportation system. The intended population...
A large city wants to conduct a survey about its public transportation system. The intended population is all current residents, regardless of whether or not they use public transportation. Match each scenario below with one of the following sampling methods. A. Convenience Sample B. Cluster Sample C. Simple Random Sample D. Stratified Sample E. Systematic Sample F. Voluntary Response Sample G. None of the above   Select an answer    Convenience Sample    Cluster Sample    Simple Random Sample    Stratified Sample    Systematic Sample    Voluntary Response Sample    None of the above      1....
A large city wants to conduct a survey about its public transportation system. The intended population...
A large city wants to conduct a survey about its public transportation system. The intended population is all current residents, regardless of whether or not they use public transportation. Match each scenario below with one of the following sampling methods. A. Convenience Sample B. Cluster Sample C. Simple Random Sample D. Stratified Sample E. Systematic Sample F. Voluntary Response Sample G. None of the above 1. Advertise on local television and radio, inviting residents to call a toll-free number and...
The Philadelphia Area Transit Authority wishes to estimate the proportion of central city workers that use public transportation to get to work.
The Philadelphia Area Transit Authority wishes to estimate the proportion of central city workers that use public transportation to get to work. A sample of 100 workers revealed that 64 used public transportation. Develop a 95% confidence interval for the population proportion.
The table below represents the number of young people in a certain city enrolled in the...
The table below represents the number of young people in a certain city enrolled in the academic support and enrichment program of youth services. Here, x represents the number of months from January 2011, and y represents the number of young people enrolled. Use Excel to find the best fit linear regression equation. Round the slope and intercept to two decimal places. x   y 0   3199 1   3282 2   3432 3   3245 4   3076 5   3485 6   1524 7   1880...
The mean salary of people living in a certain city is $37,500 with a standard deviation...
The mean salary of people living in a certain city is $37,500 with a standard deviation of $2,348. A sample of 62 people is selected at random from those living in the city. Find the probability that the mean income of the sample is within $500 of the population mean. Round your answer to 4 decimal places.
The mean annual income for people in a certain city (in thousands of dollars) is 42,...
The mean annual income for people in a certain city (in thousands of dollars) is 42, with a standard deviation of 30. A pollster draws a sample of 92 people to interview. A) What is the probability that the sample mean income is less than 37? Round the answer to at least four decimal places. B) What is the probability that the sample mean income is between 40 and 44? Round the answer to at least four decimal places. C)...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT