Suppose a Random Sample Of $n = 64$ Measurements Is Selected from a Population with Mean

Essay

Suppose a random sample of $n = 64$ measurements is selected from a population with mean $\mu = 65$ and standard deviation $\sigma = 12$ . Find the values of $\mu _ { \bar { x } } ^ { - }$ and $\sigma _ { \bar { x } } ^ { - }$ .