3. For which of the following samples would it be appropriate to use t-procedures for inference for the population mean?



(A) III

(B) I and II

(C) I and III

(D) II and III

(E) I, II, and III



3 For which of the following samples would it be appropriate to use tprocedures for inference for the population meanA IIIB I and IIC I and IIID II and IIIE I I class=