A light bulb manufacturer keeps track of the length of use of its light bulbs that it produces by choosing random samples and testing.
- Why would they find it necessary to keep this data?
- Why would it be necessary to know this information?
- What would happen if a consumer purchased a package of light bulbs and three out of four of them burned out after 200 hours of use when the package states that each bulb should burn for 500 hours?
- Would you predict that the consumers would return the package for a refund or exchange them for another package from the same company?