Question

Jared is in charge of production in a factory that makes lightbulbs. The factory made 2,648 lightbulbs over the weekend. Jared wants to pull a sample of these bulbs for testing. Which sample would give Jared the most-accurate test results? a sample consisting of every 20th lightbulb a sample consisting of every 40th lightbulb a sample consisting of every 50th lightbulb a sample consisting of every 100th lightbulb

Answer 1

Ideally, the smaller the sample population, the more accurate is the sampling result, but it will take longer time if the number of samples is huge. 

The answer to the above question is ideally 20 light bulbs per sampling.