If a researcher predicts the experimental treatment $\left(\bar{X}_{1}-\bar{X}_{2}

Question

If a researcher predicts the experimental treatment $\left(\bar{X}_{1}-\bar{X}_{2}<0\right)$ $\bar{X}_{2}$ will produce an increase in an independent-samples t-test
, how will the null hypothesis be stated?

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The Answer of If a researcher predicts the experimental treatment $\left(\bar{X}_{1}-\bar{X}_{2}<0\right)$ $\bar{X}_{2}$ will produce an increase in an independent-samples t-test
, how will the null hypothesis be stated?

If a Researcher Predicts the Experimental Treatment (Xˉ1−Xˉ2<0)\left(\bar{X}_{1}-\bar{X}_{2}<0\right)(Xˉ1​−Xˉ2​<0) Xˉ2\bar{X}_{2}Xˉ2​ Will Produce an Increase in an Independent-Samples T-Test , How

If a Researcher Predicts the Experimental Treatment $\left(\bar{X}_{1}-\bar{X}_{2}<0\right)$ $\bar{X}_{2}$ Will Produce an Increase in an Independent-Samples T-Test
, How