The average monthly cell phone bill was reported to be $52.36 by the U.S. Wireless Industry. Random sampling of a large cell phone company found the following monthly cell phone charges (in dollars):54.83 59.88 62.98 60.4268.47 52.45 49.20 48.0258.60 51.29 51.15 49.45At the 0.05 level of significance, can it be concluded that the average phone bill has increased?

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Description: The average monthly cell phone bill was reported to be $52.36 by the U.S. Wireless Industry. Random sampling of a large cell phone company found the following monthly cell phone charges (in dollars):54.83 59.88 62.98 60.4268.47 52.45

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The average monthly cell phone bill was reported to be $52.36 by the U.S. Wireless Industry. Random sampling of a large cell phone company found the following monthly cell phone charges (in dollars):

54.83	59.88	62.98	60.42
68.47	52.45	49.20	48.02
58.60	51.29	51.15	49.45

At the 0.05 level of significance, can it be concluded that the average phone bill has increased?

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