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16. The life time of bulbs is as follows. Can we accept the hypothesis that the average life is 4 hours? Item 1 2

16. The life time of bulbs is as follows. Can we accept the hypothesis that the average life is 4 hours? Item 1 2 3 4 5 6 7 8 9 10 Life (hours) 4.2 4.6 3.9 4.1 5.2 3.8 3.9 4.3 4.4 5.6

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