X G vaccine clinic find x 3 Service Finder X Service Finder x Content X G Let X subscript 1 X + /ultra/courses/_67481_1/cl/outline # Update OUTLOOK studentConnect -.. finance book Course Hero S MKTG2301 - UWA. M Free vertex form c... M GMAIL Reading Lis Remaining Time: 1 hour, 46 minutes, 38 seconds. Question Completion Status: Let X1, X2, X3, ..., Xn be iid random variables with X, ~ N(u, ") , and define the usual sample mean ie X = _ EX We know that if Z = X - H then Z ~ N (0 , 1 ) . o / Jn If we now define W = X - H where S comes from the usual estimatordof O , ie s / Jn -TEX, - X), then what distribution does W follow? O a. N(0,1) O b. N(0, 1.5) O c. tn- 1 (ie a t-distribution with n-1 degrees of freedom)