Question: How would I calculate the test statistic for this experiment? I attached the data below. You are interested in how stress affects blood levels of

How would I calculate the test statistic for this experiment? I attached the data below. You are interested in how stress affects blood levels of beta-endorphins. You assess betaendorphin levels for 11 patients, 1 week before surgery and 10 minutes before surgery, as behavioral data from patients shows that patients are significantly more stressed right before surgery compared to 1 week prior. The data are presented below in fmol/ml.

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