Consider the following hypothesis statement using a = 0.02 and the following data from two independent samples. Complete parts a and b below. Ho: P1 - P2 $0.20 X1 = 200 X2 = 128 H1: P1 - P2 > 0.20 n1 =225 n2 = 200 .. . .. a. Calculate the appropriate test statistic and interpret the result. What is the test statistic? 1.2260 (Round to four decimal places as needed.) What is/are the critical value(s)? (Round to four decimal places as needed. Use a comma to separate answers as needed.)