Question

The postmortem interval (PMI) is the elapsed time between death and the performance of an autopsy on the cadaver. Brain and Language (June 1995) reported on the PMIs of 22 randomly selected human brain specimens obtained at autopsy. The data are reproduced in the following table. A coroner claims that the true mean PMI of human brain specimens obtained at autopsy is 10 days. Do you agree? Use an appropriate test of hypothesis.

I use a TI-83 calculator

3.3 4.1 4.3 4.6 4.9 5.3 5.5 5.5

5.8 6 6.1 6.2 6.5 7 7 7.2

10.4 10.4 10.5 11 14.5 14.5

Answer 1

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