The following two samples were collected as matched pairs. Complete parts (a) through (d) below. Pair 7 Sample 1 Sample 2 a. State the null and alternative hypotheses to test if a difference in means exists between the populations represented by Samples 1 and 2. Let u. be the population mean of matched-pair differences for Sample 1 minus Sample 2. Choose the correct answer below. MA. Ho: Hd = 0 OB. HO: HJ #0 Hy : H . # 0 Hy: Hd =0 O C. Ho: Hy SO OD. Ho: Hg 20 Hy : Hq >0 b. Calculate the appropriate test statistic and interpret the results of the hypothesis test using a = 0.05. The test statistic is ]. (Round to two decimal places as needed.)