Average systolic blood pressure of a normal male is supposed to be about 129.

Measurements of systolic blood pressure on a sample of 12 adult males from a community whose dietary habits are suspected of causing high blood pressure are listed below:

115 134 131 143 130 154 119 137 155 130 110 138 Do the data justify the suspicions regarding the blood pressure of this community?

(Use α = 0.01.)

 LO.1