# Question: A company is sued for job discrimination because only 19

A company is sued for job discrimination because only 19% of the newly hired candidates were minorities when 27% of all applicants were minorities. Is this strong evidence that the company’s hiring practices are discriminatory?

a) Is this a one-tailed or a two- tailed test? Why?

b) In this context, what would a Type I error be?

c) In this context, what would a Type II error be?

d) In this context, what is meant by the power of the test?

e) If the hypothesis is tested at the 5% level of significance instead of 1%, how will this affect the power of the test?

f) The lawsuit is based on the hiring of 37 employees. Is the power of the test higher than, lower than or the same as it would be if it were based on 87 hires?

a) Is this a one-tailed or a two- tailed test? Why?

b) In this context, what would a Type I error be?

c) In this context, what would a Type II error be?

d) In this context, what is meant by the power of the test?

e) If the hypothesis is tested at the 5% level of significance instead of 1%, how will this affect the power of the test?

f) The lawsuit is based on the hiring of 37 employees. Is the power of the test higher than, lower than or the same as it would be if it were based on 87 hires?

## Answer to relevant Questions

Highway safety engineers test new road signs, hoping that increased reflectivity will make them more visible to drivers. Volunteers drive through a test course with several of the new-and old-style signs and rate which kind ...A philanthropic organization sends out “free gifts” to people on their mailing list in the hope that the receiver will respond by sending back a donation. Typical gifts are mailing labels, greeting cards, or post cards. ...For each of the following situations, find the critical value(s) for z or t. a) H0: p = 0.5 vs. HA: p ≠ 0.5 at α = 0.05. b) H0: p = 0.4 vs. HA: p > 0.4 at α = 0.05. c) H0: μ = 10 vs. HA: μ ≠ 10 at α = 0.05; n = ...Does it matter what kind of tee a golfer places the ball on? The company that manufactures “Stinger” tees claims that the thinner shaft and smaller head will lessen resistance and drag, reducing spin and allowing the ...Using the data in Exercise 3, test the hypothesis that the mean age of houses in the two neighborhoods is the same. You may assume that the ages of houses in each neighborhood follow a Normal distribution. a) Calculate the ...Post your question