The length (in inches) of a metal rod can be approximated by a normal distribution with mean and standard deviation of 470" and 5" respectively. Metal rods with length between 461" and 479". are considered acceptable product for shipment, others are rejected. Suppose one million units of metal rods are produced each day.

Approximately how many units are acceptable for shipment in one day?

If the customer desires to change the acceptable range to 462" - 478", approximatelyhow many more unitswill be rejected in one day due to this specification change?