A researcher expects a treatment to increase the scores. The treatment is evaluated using a one-tailed hypothesis test, and the obtained (or 'calculated'j value is z = +1.?2. Based on this result, what is the correct statistical decision? 0 The researcher should fail to reject Hg with either or = .05 or o' = .01 0 Cannot answer without additional information 0 The researcher should reject the null hypothesis with either or = .05 or or = .01 O The researcher should reject the null hypothesis with or = .05 but not with o\" = .01