A medical researcher wants to examine the relationship of the blood pressure of patients before and after a procedure. She takes a sample of people and measures their blood pressure before undergoing the procedure. Afterwards, she takes the same sample of people and measures their blood pressure again. The researcher wants to test if the blood pressure measurements after the procedure are different from the blood pressure measurements before the procedure. The hypotheses are as follows: Null Hypothesis: μD = 0, Alternative Hypothesis: μD ≠ 0. From her data, the researcher calculates a p-value of 0.5704. What is the appropriate conclusion? The difference was calculated as (after - before).   Question 16 options:   1)  The average difference in blood pressure is significantly different from 0. The blood pressures of patients differ significantly before and after the procedure.   2)  We did not find enough evidence to say the average difference in blood pressure was not 0.   3)  The average difference in blood pressure is equal to 0.   4)  We did not find enough evidence to say there was a significantly positive average difference in blood pressure.

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