Suppose a simple random sample of size n is drawn from a large population with mean muμ and standard deviation sigmaσ. the sampling distribution of x overbarx has mean mu subscript x overbarμxequals= ▼ startfraction mu over n endfraction μ n startfraction mu over startroot n endroot endfraction μ n sigmaσ startfraction sigma over n endfraction σ n muμ and standard deviation sigma subscript x overbarσxequals=