Post a New Question

statistics

posted by .

2. The Occupational Safety and Health Administration (OSHA) estimates that roughly 30% of all worker compensation claims stem from back injuries. This statement was made many years ago and you want to know if this has changed in recent years. Suppose you take a random sample of 200 claims and find that 45 of them relate to back injuries.

  • statistics -

    You can try a proportional one-sample z-test for this one since this problem is using proportions.

    Using a formula for a proportional one-sample z-test with your data included, we have:
    z = .225 - .30 -->test value (45/200) is .225) minus population value (.30) divided by
    √[(.30)(.70)/200] --> .70 represents 1-.30 and 200 is sample size.

    Finish the calculation. I'll let you take it from here.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Safety

    who is the father of occupational medicine in U.S. Dr. Alice Hamilton could be considered the "mother" of occupational medicine in the U.S. http://www.answers.com/topic/advisory-committee-on-construction-safety-and-health-accsh
  2. Occupational Safety

    Compare countries Thailand and South Africa for Occupational Health and Safety statistics..how do they compare?
  3. Thailand & South Africa

    I need to know the occupational health and safety statistics for Thailand and South Africa. and how they compare?
  4. Safety

    do other countries have programs similar to worker's compensation in states such as West Virginia?
  5. Algebra

    The Occupational Safety and health Administration (OSHA) estblished permissible sound exposures in the work-place. This is modeled by the equation: S=-2.817H + 108.9 Use the formula for the problem: S=maximun permissible sound level …
  6. Algebra

    The Occupational Safety and health Administration (OSHA) estblished permissible sound exposures in the work-place. This is modeled by the equation: S=-2.817H + 108.9 Use the formula for the problem: S=maximun permissible sound level …
  7. Workplace Hazards and Safety

    Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace. This is the information I have: Worker's responsibilites: -Cooperate with the joint committee or worker health and safety …
  8. English

    Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace. This is the information I have: Worker's responsibilites: -Cooperate with the joint committee or worker health and safety …
  9. statistics

    Wages and salaries make up only part of a total compensation. Other parts include paid leave, health insurance, and many others. In 2007, wages and salaries among manufacturers in the United States made up an average of 65.8% of total …
  10. Business Law

    Which of the following is true regarding workers' compensation?

More Similar Questions

Post a New Question