. Numbers only 6 . GLL insurance company often tracks life expectancy information to determine life insurance policies for Points: 3 its policyholders. Two years ago, the average life expectancy of all policyholders was 79.6 years with a standard deviation of 3.56 years. At this time, GLL wants to estimate the average life expectancy to within one year with 99% confidence. How many randomly selected recently paid policies would be needed to sample? Type your numerical answer here. Numbers only