Could you please help me with this?

1. In which of the following situations is it the LEAST safe to use t-procedures? (a) m =5, m = 5, both samples approximately Normal. (b) m :22, n2 : 22, both samples moderately skewed. (c) :2; =14, n2 2 17, sample 1 approximately Normal, sample 2 very slightly skewed. (d) m :24, n2 : 24, both samples approximately Normal except that sample 2 has two large outliers. (e) It's not safe to use tprocedures in any of the situations above. 2. You want to know if there is a difference between the amount of money juniors and seniors spend at the canteen. You randomly select juniors and randomly select seniors and ask them how much money they spent at the canteen in the last week. Which would be the appropriate test to perform with this data? (a) Two-sample z test for a difference in proportions (b) Two-sample z test for a difference in means (c) Paired t test for a mean difference ((1) Two-sample t test for a difference in means (e) Two-sample I test for a difference in proportions