Is the companies claim justified

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Reference no: EM131396367

Most lightbulb manufacturing companies claim that their 60-watt bulbs have an average life of 1000 hours.

A skeptic with some skill as an electrician wired up sockets and timers and lighted 40 bulbs. The life of each bulb recorded automatically. Is the companies' claim justified?

Reference no: EM131396367

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