Need help woth question 1

orrect answer for 1-19 will receive In a t test, if the sample size of a two tail test with 1% alpha level is 20, then the critical value is a) 2.528 b) 2.539 C) 2.845 d) 2.861 2. A statistician wishes to test whether students' grade point average is independent of whether the students attend Day or evening session. The appropriate test would be a : a) Chi-square test c) z test b) t test d) Linear regression test ons 3-6 are based on the following paragraph: a size