Jessie spends hours each day trying to suppress the intrusive worry that she may have forgotten to lock her house when she left for work. Her experience is most symptomatic of a(n) disorder.

Arecent poll of 500 residents in a large town found that only 36% were in favor of a proposed referendum to build a new high school. find the margin of error for this poll if we want 95% confidence in our estimate of the percentage of residents in favor of this proposed referendum.