t Test: One-Sided Alternatives o Besides our null. h. we need an alternative hypothesis, HI, and a significance level Himay be one-sided, or two-Sided ◆H1:B>0andH1:B<C <O are one-sided H: Bi*0 is a two-sided alternative e If we want to have only a 5% probability of rejecting Ho if it is really true, then we say our significance level is 5% Economics 20- Prof anderson 9Economics 20 - Prof. Anderson 9 t Test: One-Sided Alternatives Besides our null, H0 , we need an alternative hypothesis, H1 , and a significance level H1 may be one-sided, or two-sided H1 : bj > 0 and H1 : bj < 0 are one-sided H1 : bj  0 is a two-sided alternative If we want to have only a 5% probability of rejecting H0 if it is really true, then we say our significance level is 5%