Aggregate Insurance Claims via the CLT

An insurer has $300$ independent policyholders. Each policyholder files a $\mathrm{Poisson}(3)$ number of claims per year. Let $T = \sum_{i=1}^{300} N_i$ be the total number of claims.

Using the CLT, approximate $P(T > 960)$.

You may use $\Phi(2.00) \approx 0.9772$.