A health insurance company is interested in estimating the percentage of policy holders who exercise at least five days per week. Four hundred policy holders were randomly selected and asked if they exercise at least five days per week. Results indicated that 220 policy holders exercise at least five days per week. Find a 96.84% confidence interval for the proportion of policy holders who exercise at least five days per week. You must conclude your work by stating in words what this confidence interval means in the context of policy holders exercising