An insurance company is offering a new policy to its customers. Typically the policy is bought by a parent or grandparent for a child at the child's birth. The details of the policy are as follows: The purchaser (say, the parent) makes the following six payments to the insurance company:

First birthday: ..........................$400

Second birthday: ......................$500

Third birthday: ........................$600

Fourth birthday: .......................$700

Fifth birthday: .........................$800

Sixth birthday: ........................$900

After the child's sixth birthday, no more payments are made. When the child reaches age 65, he or she receives $250,000. If the relevant interest rate is 11 percent for the first six years and 7 percent for all subsequent years, is the policy worth buying?