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Hypothesis and Interval: Average Wage Based on Gender and Race

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


Solution Summary

This solution performs a hypothesis test showing trying to prove that there is no wage difference based on either race or gender.