Homework Help: Statistics

Posted by Samantha on Saturday, July 25, 2009 at 1:18pm.

For the manufacturing plant discussed in Exercise 8.10, the union president and the human resources director jointly select a simple random sample of 36 employees to engage in a discussion with regard to the company’s work rules and overtime policies. What is the probability that the average number of overtime hours last year for members of this sample would have been less than 65.0 hours? Between 55.0 and 65.0 hours?
(8.10) Employees in a large manufacturing plant worked and average of 62.0 hours of overtime last year, with a standard deviation of 15.0 hours. For a simple random sample of n=36 employees and x=the number of overtime hours worked last year, determine the z-score corresponding to each of the following sample means:
a. ő̄= 55.0 hours b. ő̄=60.0 hours
c. ő̄=65.0 hours d. ő̄= 47.0 hours

No one has answered this question yet.

Answer this Question

Related Questions

Statistics - For the manufacturing plant discussed in Exercise 8.10, the union ...
Statistics - For the manufacturing plant discussed in Exercise 8.10, the union ...
Statistics - 8.11) For the manufacturing plant discussed in Exercise 8.10, the ...
statistics - using a simple random sampling, select a sample of 12 students out ...
statistics - 2. The director of admissions at a large university advises ...
Basic Statistics - A population of 300 voters contains 147 Republicans, 135 ...
Math - How can you classify the 2 examples that you gave in part c? Is it: ...
statistics - a simple random sample will be obtained from a normally distributed...
Statistics - The Arcade shack is a manufacturing plant located in San Diego ...
statistics - 10. A random sample of n=36 scores is selected from a normal ...

For Further Reading

First Name:
School Subject:
Answer: