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Phone Plastic T-TestEssay Preview: Phone Plastic T-TestReport this essayRunning head: PHONE PLASTIC T-TESTPhone Plastic t-TestLisa BoyleUniversity of PhoenixCell Phone Plastic t-TestResearch Problem Question and PurposeThe research problem is, is there a there a difference between cell phones that are heated and unheated that would cause damage in temperature over 120 degrees? The purpose is to.