Question: In order to study any possible relationship between age and change in systolic blood pressure (BP) (mm Hg) in 24 h in response to a

In order to study any possible relationship between age and change in systolic blood pressure (BP) (mm Hg) in 24 h in response to a treatment, the following data were obtained from 11 individuals.

(a) Draw a scatterplot.
(b) Find the sample correlation of age and systolic BP.
(c) Fit a least-squares regression line.
(d) Interpret (a), (b), and (c).

70 51 65 70 48 70 45 48 35 48 30 Systolic BP -28 -10 -815 -81012 3 1 -5 5 change

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