Consider the following hypothesis statement usingalphaequals0.05 and data from two independent samples. Assume thepopulation variances are not equal and the populations are normallydistributed. Complete parts a and b. Upper H 0 : mu 1 minus mu 2equals 0 x overbar 1 equals 115.1 x overbar 2 equals 122.0 Upper H1 : mu 1 minus mu 2 not equals 0 s 1 equals 25.6 s 2 equals 14.5 n1 equals 15 n 2 equals 21 a. Calculate the appropriate teststatistic and interpret the result.