Final answer:
The health center is using a 95% confidence level to estimate the proportion of college students experiencing depression or anxiety.
Step-by-step explanation:
The health center is using a 95% confidence level to estimate the proportion of college students experiencing depression or anxiety. A confidence level of 95% means that if the study were repeated multiple times, we would expect the confidence interval to capture the true proportion of college students experiencing depression or anxiety 95% of the time.