When the population standard deviation is unknown and the population is normal,the test statistic for testing hypotheses about $\mu$ is the ____________________-distribution with ____________________ degrees of freedom.

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The Answer of When the population standard deviation is unknown and the population is normal,the test statistic for testing hypotheses about $\mu$ is the ____________________-distribution with ____________________ degrees of freedom.

When the Population Standard Deviation Is Unknown and the Population μ\muμ

When the Population Standard Deviation Is Unknown and the Population $\mu$