Based on information from Diagnostic Tests with Nursing Implications, Springhouse Corporation, for the population of healthy female adults, the mean red blood cell count (RBC) is 4.8 (millions of cells per cubic millimeter of whole blood). A researcher thinks the RBC is underestimated, so she conducts a test of significance using Null Hypothesis: 4.8 vs. Alternative Hypothesis: >4.8. If the true mean RBC is 4.75 and the null hypothesis is rejected, what has occurred