135 Research on brain specimens. Refer to the Brain and Language data on postmortem intervals (PMIs) of
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135 Research on brain specimens. Refer to the Brain and Language data on postmortem intervals (PMIs) of 22 human brain specimens, presented in Exercise 39.
The data are saved in the BRAINPMI file. The mean and standard deviation of the PMI values are 7.3 and 3.18, respectively.
a. Find the z -score for the PMI value of 3.3.
b. Is the PMI value of 3.3 considered an outlier?
Explain.
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