Use MYSTAT or LazStats to reproduce your result in Exercise 13.6.
In Exercise 13.6.
Hoaglin, Mosteller, and Tukey (1983) present data on blood levels of beta-endorphin as a function of stress. They took beta-endorphin levels for 19 patients 12 hours before surgery and again 10 minutes before surgery. The data are presented below, in fmol/ml:

Based on these data, what effect does increased stress have on beta-endorphin levels?

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