5. A statistical researcher is conducting a test to determine if females in finance positions earn less than men with equivalent jobs. After collecting income data for the two groups the researcher needs to determine the appropriate test to run in excel. Which test would you choose - a t-test assuming equal variances or a t-test assuming unequal variances? Would it be appropriate to use the t-test assuming unequal variances if the variance in income is the same between men and women? Explain this result