"Tarzan lights, Inc" claims that its compact fluorescent bulbs average no more than 3.50 mg of...

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Question

Tarzan lights, Inc claims that its compact fluorescent bulbs average no more than 3.50 mg of mercury. A sample of 25 bulbs

Answer 1

Answer #1

Assuming the population is normally distrbuted; also as the population sd is given, we will sue z test

ANS : z test

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Answer 2

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