Your company buys resistors on tape spools in lots of 20,000. "You have an automatic machine that tests all the resistors in a spool for tolerance codes the position of "bad" ones, and forwards the spool to the assembly. The last 350 lots have had an average of 1.8 resistors that have been out of limits.
The new lot has 8 resistors out of limits
Part 1. What is the appropriate distribution for such data?
Part 2. Is this lot anomalous?