If the Null Hypothesis Is$H _ { o } : \mu = 100 , \bar { x } = 105 \text {, and } \sigma _ { \bar { x } } = \sigma / \sqrt { n } = 2.5$

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If the Null Hypothesis Is $H _ { o } : \mu = 100 , \bar { x } = 105 \text {, and } \sigma _ { \bar { x } } = \sigma / \sqrt { n } = 2.5$