A Physician Claims That a Personʹs Diastolic Blood Pressure Can

question 9

Essay

A physician claims that a personʹs diastolic blood pressure can be lowered if, instead of taking a drug, theperson meditates each evening. Ten subjects are randomly selected and pretested. Their blood pressures,measured in millimeters of mercury, are listed below. The 10 patients are instructed in basic meditation andtold to practice it each evening for one month. At the end of the month, their blood pressures are taken again.The data are listed below. Test the physicianʹs claim. Use α = 0.01. $$\begin{array} { l | c | c | c | c | c | c | c | c | c | c | } \text { Patient } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\\hline \text { Before } & 85 & 96 & 92 & 83 & 80 & 91 & 79 & 98 & 93 & 96 \\\hline \text { After } & 82 & 90 & 92 & 75 & 74 & 80 & 82 & 88 & 89 & 80\end{array}$$

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