Smith Is a Weld Inspector at a Shipyard

Multiple Choice

Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds that forthe afternoon shift 5% of all welds done will be substandard. If Smith checks 300 of the 7500 welds completedthat shift, would it be unusual for Smith to find 30 or more substandard welds?

A) Yes
B) No