A manufacturer of dry cells claimed that the life of their cells is 24.0 hours. A sample of 10 cells had mean life of 22.5 hours with a standard deviation of 3.0 hours. On the basis of available...


A manufacturer of dry cells claimed that the<br>life of their cells is 24.0 hours. A sample of 10 cells<br>had mean life of 22.5 hours with a standard deviation<br>of 3.0 hours. On the basis of available information,<br>test whether the claim of the manufacturer is correct.<br>

Extracted text: A manufacturer of dry cells claimed that the life of their cells is 24.0 hours. A sample of 10 cells had mean life of 22.5 hours with a standard deviation of 3.0 hours. On the basis of available information, test whether the claim of the manufacturer is correct.

Jun 07, 2022
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