Mathematics, 19.03.2021 04:20, loganrose50

Theresa is testing the lifespan of light bulbs for a school project. After testing 10 Brand A light bulbs and 10 Brand B light bulbs, she finds that Brand A bulbs last, on average, 4 hours longer than Brand B light bulbs. What inference can she make from these tests?

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Theresa is testing the lifespan of light bulbs for a school project. After testing 10 Brand A light...