For the one-sample z test, the larger the value of a test statistic, the more likely that the decision will be to reject the null hypothesis. Question 28 options: 1) True 2) FalseA large effect size means that Cohen's d is at least equal to .80. Question 29 options: 1) True 2) False or the one-sample z test, the larger the value of a test statistic, the more likely that the decision will be to reject the null hypothesis