comm 215: assume that for a family of four, the annual dental care exp

comm 215: assume that for a family of four, the annual dental care exp

comm 215: assume that for a family of four, the annual dental care expenses follow the normal distribution with a mean expense equal to $3500 and a standard deviation of $500. An insurer has decided to offer a dental insurance premium reduction if the policyholders dental care expenses do not exceed a specified amount.what dollar amount should be established if the insurer wants families with the lowest 25 percent of annual dental care expenses to be eligible for the premium reduction?