A researcher is interested in the effect of gender bias in hiring. A total of 100 scientists were given a fake job application and had to decide how likely they were to hire the candidate. 50 scientists received an application with a typically male name on top, while the other 50 scientists received an application with a typically female name on top. The applications were identical other than the name. The dependent variable was the scientists' rating of how likely they were to hire the candidate. Which hypothesis test would be appropriate to test the difference in rating between the male-name and female-name conditions?