Question

A physician claims that a person's diastolic blood pressure can be lowered if, instead of taking a drug, the person 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 and told 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 physician's claim. Use α = 0.01. Find the difference by subtracting in the order: Before - After Find the difference by subtracting in the order: Before - After

85. 96. 92. 83. 80. 91. 79 98. 93. 96

82. 90. 92. 75. 74. 80. 82. 88. 89. 80

State the null and alternative hypotheses. H0: μd = 0 HA: μd ≠ 0 H0: μd = 0 HA: μd > 0 H0: μd ≠ 0 HA: μd = 0 H0: μd < 0 HA: μd > 0

test stat

p-val

Answer 1