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The average monthly cell phone bill was reported to be $50.07 by the U.S. Wireless Industry. Random sampling of a large cell phone company found the following monthly cell phone charges: 55.83 49.88 62.98 70.42 60.47 52.45 49.20 50.02 58.60 51.29 At the 0.05 level of significance can it be concluded that the average phone bill has increased?

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Answer:

www.numerade.com/questions/the-average-monthly-cell-phone-bill-was-reported-to-be-5007-by-the-us-wireless-industry-random-sampl/

Explanation:

User Maxim Kuzmin
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