A manufacturer of printers claims that their printer can print at least 10219 pages before any parts need to be replaced

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answerhappygod
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A manufacturer of printers claims that their printer can print at least 10219 pages before any parts need to be replaced

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A manufacturer of printers claims that their printer can print
at least 10219 pages before any
parts need to be replaced, except for the ink. A consumer
organization wants to test this
claim. They test 23 printers, and fifind out that on average the
printers can print 10059 pages
without the need to replace any parts. The standard deviation is
known to be 553 pages.
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