stats

posted by .

The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping (USA Today, November 11, 2009). Assume that the number of hours a worker spends doing holiday shopping on an office computer follows an exponential distribution.

a. The study reported that there is a .53 probability that a worker uses an office computer for holiday shopping 5 hours or less. Is the mean time spent using an office computer for holiday shopping closest to 5.8, 6.2, 6.6, or 7 hours?

b. Using the mean time from part (a), what is the probability that a worker uses an office computer for holiday shopping more than 10 hours (to 4 decimals)?

c. What is the probability that a worker uses an office computer for holiday shopping between 4 and 8 hours (to 4 decimals)?

  • stats -

    dc

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. government

    the "nerve center" of the executive office of the lpresident is the a. office of management and budget b. office of national drug control policy c. white house office d. council of economic advisers c
  2. business

    Think about where your personal information is stored from an information systems perspective: - Is your credit card information saved on file at your favorite online store?
  3. MATH (Probability)

    Jackson and Alice are the boss and secretary respectively working in an office for a firm. At any particular time during office hours, the probability that Jackson is in the office is 0.82 and probability that Alice is in the office …
  4. computer tech

    you are starting up a new business and have just rented an office with cubicles and desks already provided. you will have a total of 20 employees including yourself. 5 employees will be mobile users with Office 2007 software, another …
  5. 10th grade

    A computer manufacturer assembled 21,000 computers in October. For the month of November, they expect to double production. If a worker can assemble one computer per day, how many workers will be needed to complete the job in 28 days?
  6. Please can help me solving my problems(Probality)

    Probability that Jackson is in the office is 0.82 and probability that Alice is in the office is 0.5. The probability that Jackson is in the office given that Alice is in the office is 0.76.Find the probability that at any particular …
  7. statistics

    An average office worker uses 10000 sheets of paper each year. Assume that the population standard deviation is 3000 sheets per year. Is it unusual for the office worker to use over 15000 sheets each year?
  8. Keith

    The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping. Assume that the number of hours a worker spends doing holiday shopping …
  9. Statistics

    The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping (USA Today, November 11, 2009). Assume that the number of hours a …
  10. statistics

    The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping. Assume that the number of hours a worker spends doing holiday shopping …

More Similar Questions