Test whether the proportion of women earning $140,000 or more is significantly different from the proportion of men earning $140,000 or more. Show all parts of testing process. See the attached file for more data. Use a calculator.
Construct a 90% confidence interval for the proportion of women (out of all women) earning $140,000 or more per year.
Test the hypothesis that there is no difference in the average wage paid based on ethnicity. Assume all populations are independent and nearly normal.
Caucasian - 8
African American - 6
Hispanic - 3
Other - 3
This solution performs a hypothesis test showing trying to prove that there is no wage difference based on either race or gender.