Answered>Order 201

 (a) (1 pt) Which of the following is the appropriate test and best distribution to use for the test?

      (i) Two independent means, normal distribution

      (ii) Two independent means, Student’s t-distribution

      (iii) Matched or paired samples, normal distribution

      (iv) Matched or paired samples, Student’s t-distribution

(b) (1 pt) Let ?d be the population mean for the differences of weights (weight after the program – before the program). Fill in the correct symbol (=, ?, ?, >, ?, <) for the null and alternative hypotheses.