Homework Help: statistics

Posted by Joey on Saturday, October 1, 2011 at 10:53am.

A manager states that in his factory, the mean number of days per year missed by his employees is less than the national mean of 10. The following data is days missed by some of his employees last year (mean=5.025, standard deviation=3.634). Is there sufficient avidence to belive the manager's statement?

statistics - PsyDAG, Saturday, October 1, 2011 at 8:01pm
Which "some of his employees"? How many employees were in his sample?

The standard error of the mean (SEm) for a distribution of means is like the standard deviation (SD) for a distribution of scores.

SEm = SD/√n, where n = number of subjects in his sample.

Does this help you answer the question?

Answer this Question

Related Questions

statistics - Data on number of days of work missed and annual salary increase ...
stats - Data on number of days of work missed and annual salary increase for a ...
stats - Data on number of days of work missed and annual salary increase for a ...
Statistics - 20. A study involves measuring the number of days absent from work ...
STATISTICS 014 - 1. A manager wishes to find out whether there is a relationship...
statistics - The U.S. Department of Agriculture claims that the mean consumption...
Statistics - The head librarian claims that books have been checked out an ...
statistics - A sample of 25 different payroll depts. found that the employees ...
Business - Thomas Kratzer is the purchasing manager for the headquarters of a ...
statistics - School 1 Statistics: Average truancy per student is 8 days per ...

For Further Reading

First Name:
School Subject:
Answer: