Question

A survey conducted by PT Commuter Line shows that 5% are commuters spend ≥ 1 hour...

A survey conducted by PT Commuter Line shows that 5% are commuters
spend ≥ 1 hour traveling from home to office.
a. If 10 commuters are chosen to be surveyed one day, what are the chances of 3 people among them
spend ≥ 1 hour traveling from home to office
b. If 10 commuters are chosen to be surveyed one day, how many chances are there 2 people who
spend <1 hour traveling from home to office
c. If PT Commuter Line has 2000 employees, what is the average and variance of the number
employees who spend ≥1 hour traveling from home to office

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
5. In 1953, a French economist named Maurice Allais conducted a survey of how people assess...
5. In 1953, a French economist named Maurice Allais conducted a survey of how people assess risk. He gave each surveyed person two scenarios, and they had to choose one option in each.   Scenario 1: You have a choice of (A) a 100% chance of gaining $1 million, or (B) a 10% chance of gaining $2.5 million, a 89% chance of gaining $1 million and a 1% chance of gaining nothing. Scenario 2: You have a choice of (A) an...
The Trade Show Bureau conducted a survey to determine why people go to trade shows. The...
The Trade Show Bureau conducted a survey to determine why people go to trade shows. The respondents were asked to rate a series of reasons on a scale from 1 to 5, with 1 representing little importance and 5 representing great importance. One of the reasons suggested was general curiosity. The following table summarized the responses for 50 people from the computers/electronics industry and 50 people from the food/beverage industry recorded for general curiosity. Use these and α = .01...
The table below shows the total number of COVID-19 tests conducted in Australia and in selected...
The table below shows the total number of COVID-19 tests conducted in Australia and in selected state and territory, since 22 January 2020. This figure represents the percent of all tests that have returned a positive result for COVID-19. The number of total tests conducted is updated daily but the rate of positive tests has been found to be invariant. Suppose that people independently conducted their tests following a binomial distribution and the percent of positive tests reported in each...
5. A survey conducted at a Midwestern university and involving 1,500 students found that 68% had...
5. A survey conducted at a Midwestern university and involving 1,500 students found that 68% had taken out a student loan to help pay for the cost of their college education. A similar study at a southeastern university in which 2,000 students were surveyed found that 47% had taken out a student loan. a.Develop and interpret a 95% confidence interval estimate for the difference in the proportions of students who have loans at these two universities. b.Using an alpha level...
1. Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis...
1. Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 162000 dollars. Assume the standard deviation is 31000 dollars. Suppose you take a simple random sample of 70 graduates. Find the probability that a single randomly selected policy has a mean value between 153848.5 and 170892.5 dollars. P(153848.5 < X < 170892.5) =  (Enter your answers as numbers accurate to...
1. A city official claims that the proportion of all commuters who are in favor of...
1. A city official claims that the proportion of all commuters who are in favor of an expanded public transportation system is 50%. A newspaper conducts a survey to determine whether this proportion is different from 50%. Out of 225 randomly chosen commuters, the survey finds that 90 of them reply yes when asked if they support an expanded public transportation system. Test the official’s claim at α = 0.05. 2. A survey of 225 randomly chosen commuters are asked...
1. Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the...
1. Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266 high school students surveyed, 970 admitted to smoking marijuana at least once.  A study done 10 years earlier estimated that 45% of the students had tried marijuana. We want to conduct a hypothesis test to see if the true proportion of high school students who tried marijuana is now less than 45%.   Use alpha = .01. What is the conclusion for this test? A)Based...
Case Study 1: A Day in the Life Rachel, the project manager of a large information...
Case Study 1: A Day in the Life Rachel, the project manager of a large information systems project, arrives at her office early to get caught up with work before her co- workers and project team arrive. However, as she enters the office she meets Neil, one of her fellow project managers, who also wants to get an early start on the day. Neil has just completed a project overseas. They spend 10 minutes socializing and catching up on personal...
#46 In a survey of 2000 adults 50 years and older of whom 20% were retired...
#46 In a survey of 2000 adults 50 years and older of whom 20% were retired and 80% were pre-retired, the following question was asked: Do you expect your income needs to vary from year to year in retirement? Of those who were retired, 23% answered no, and 77% answered yes. Of those who were pre-retired, 28% answered no, and 72% answered yes. If a respondent in the survey was selected at random and had answered yes to the question,...
Article # 1 Inside Nike, Women staffers circulated survey about workplace behavior Informal survey about alleged...
Article # 1 Inside Nike, Women staffers circulated survey about workplace behavior Informal survey about alleged inappropriate behavior by men at company triggered formal review. March 19, 2018, by Sara Germano & Joann S. Lublin for www.wsj.com Last year, a group of female employees at Nike circulated an informal survey about alleged inappropriate behavior by men at the world’s largest sportswear maker, people familiar with the matter said; a move that preceded the ouster of two veteran executives last week....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT