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7 May, 23:56

Quality control is an important issue at ACME Company, which manufactures light bulbs. To test the life-hours of their light bulbs, they randomly sampled nine light bulbs and measured how many hours they lasted: 378, 361, 350, 375, 200, 391, 375, 368, 321. What is the mean

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  1. 8 May, 01:28
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    oj 391 is the answer i just done it on the test
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