After receiving a large shipment of computer chips, Best Buy randomly selects 400 chips. If 3 or fewer defective chips are found, the entire lot is accepted with out inspecting the remaining chips in the lot. If 4 or more chips are defective, every chip in the entire lot is carefully inspected at the supplier's expense. As sume that the true proportion of nonconforming computer chips being supplied is 0008. Use the Poisson distribution to approximate the probability the lot will be accepted