please solve

Assume that we want to measure the number of trips per household in the Northeast Region and that we have data about the coefficient of variation (V) of this variable for various locations in the region as follows: Area CV Pennsylvania 0.98 New Hampshire 0.85 New York 1.00 Baltimore 1.07 Connecticut 1.1 2) Using the average CV in the region and 0.01 level of accuracy at 99% level, please find the number of observations needed to ensure trip rates with 1% tolerance 99% of the time. (10 Points)