SOLUTION: A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, , of foodservice workers in the U.S. Last year's mean hourly wage was , and there

Algebra ->  Probability-and-statistics -> SOLUTION: A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, , of foodservice workers in the U.S. Last year's mean hourly wage was , and there      Log On


   

Question 446029: A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, , of foodservice workers in the U.S. Last year's mean hourly wage was , and there is reason to believe that this year's value is less than last year's.
The union decides to do a statistical test to see if the value has indeed decreased. The union chooses a random sample of this year's wages, computes the mean of the sample to be , and computes the standard deviation of the sample to be .
Questions:
1. what are the null hypothesis and the alternative hypothesis that should be used for the test?
2. In the context of this test, what is a TYPE II error?
3. Suppose that the union decides to reject the null hypothesis. What sort of error might it be making?
Thank you.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
duplicate post.
Three numbers are missing.