help please

Help Team. Question 3 1 pts Which of the following statement identifies the appropriate test statistic or statistics for conducting the hypothesis test? HO : u = 0 versus HA : J # 0 (If u is the mean of a normally distributed population with unknown variance, the sample size is 20, then the appropriate test statistic is z-statistic. If u is the mean of a normally distributed population with known variance, the sample size is 30, then the appropriate test statistic is t-statistic. If u is the mean of a non-normally distributed population with unknown variance, the sample size is 100, then the appropriate test statistic is t-statistic. If u is the mean of a non-normally distributed population with unknown variance, the sample size is 25, then the appropriate test statistic is z-statistic. Previous