I hope this is the right spot for my problem. I really need some help solving this task, I appreciate every solution/ explanation (you can also answer in German/deutsch I will probably understand!)

1. Consider a sample Y1, . . . , Yn ∼ N(µ, 1) of iid normal random variables. State the distribution of C1 and C2 below with their corresponding degrees of freedom, if any. Briefly explain your answers.

kind regards, 

karolin