how can i make the statement more of a basic statement " There is a significant difference in the population, but the study failed to detect it. This is where the power of the test comes into play. A power of 85% means that if there is a true effect, the study has an 85% chance of detecting it. So, there is a 15% chance (100% - 85%) of making a Type II error, i.e., failing to detect a true effect