# Age N mean Sderror SD {18-39, 7676 ,115, 0.2, 17.52 } {40-59, 5826 ,123, 0.2 ,22.90}…

Age N mean Sderror SD
{18-39, 7676 ,115, 0.2, 17.52 }
{40-59, 5826 ,123, 0.2 ,22.90}
{ 60+ 6419, 136, 0.5, 40.06}
the data was collected on 19,921
Assuming that the populations these samples are drawn from are
normally distributed, which seems reasonable given the figures in
the paper,
1) what are the median and mode for each age-group
population?.
2)Hypertension is diagnosed when a persons systolic blood
pressure is greater than 140 mm Hg. To find the proportion of
individuals in each population who have hypertension, we need to
convert 140 to a z-score.
a)Which formula from the chapter would be appropriate?
b)Would the standard deviation or standard error be used?.
3) Without doing any calculation, how will the proportion that
would be diagnosed as hypertensive be different for each age group
population?
a)Which age group will have the largest proportion that is
hypertensive?
b)Which age group will have the smallest proportion that is
hypertensive?
Find the proportion of each population that has
hypertension:
a)What proportion of the population aged 18-39 has
hypertension?
b)What proportion of the population aged 40-59 has
hypertension?
c)What proportion of the population aged 60 and over has
hypertension?
What does the larger variability for the oldest age group
suggest about the health of the population?

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