DQ questions

DQ question 2-What information does the t statistic provide?

Dq question 3-Why is a t distribution associated with n-1 degrees of freedom

DQ question 4-Describe two sampling methods to select independent groups

DQ question 5- In light of sampling methods for independent groups, please provide and example from a peer reviewed empirical journal article for your classmates denoting your understanding and also for additional insight and learning for all.