When $\bar { X }$ is the mean of a random sample of size n (n is small) from a normal population with mean $\mu$ , the random variable $T = ( \bar { X } - \mu ) / ( S / \sqrt { n } )$ has a probability distribution called t-distribution with n-1 __________.

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The Answer of When $\bar { X }$ is the mean of a random sample of size n (n is small) from a normal population with mean $\mu$ , the random variable $T = ( \bar { X } - \mu ) / ( S / \sqrt { n } )$ has a probability distribution called t-distribution with n-1 __________.

When Xˉ\bar { X }Xˉ Is the Mean of a Random Sample of Size N

When $\bar { X }$ Is the Mean of a Random Sample of Size N