2. Twenty five men between the ages of 25 & 30 were randomly selecred in a
heart study carried by Gangajal Heart Hospital. Of these 11 were smokers
14 were not. The following data refer to readings of their systolic blood
pressure.
Smokers 124 134 136 125 133 127 135 131 133 125 118
Non-
130 122 128 129 118 122 116 127 135 120 122 120 115 123
smokers
Use these data to test the hypothesis that the mean blood pressure of smokers
and non smokers differs significantly.
15 120 12 12
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