Let's return finally to the question of whether we reject or fail to reject the null hypothesis. If our statistical analysis shows that the significance level is below the cut-off value we have set (e. g. , either 0. 05 or Ò€¦ Support or reject the null hypothesis in general situations.

Easy step-by-step solutions. When conducting a hypothesis test there are two possible decisions: Reject the null hypothesis or fail to reject the null hypothesis. You should remember though, hypothesis testing uses data from a sample Ò€¦ The shaded area of the graph represents the rejection region. The critical value is the z or t score that separates the rejection region from the fail to reject region.

The shaded area of the graph represents the rejection region. The critical value is the z or t score that separates the rejection region from the fail to reject region.