In: Statistics and Probability
Question Number 13
A Scientist is researching whether or not body mass index (BMI) to the systolic blood pressure(SBP). He collects the random sample of 8 different patients. The results are shown in the table below.
Table 8
BMI | 21 | 23 | 24 | 25 | 20 | 28 | 26 | 27 |
SBP(mm Hg) | 118 | 114 | 119 | 131 | 111 | 124 | 117 | 118 |
a. Draw a scatter diagram
b. Explain why a linear regression model may be appropriate to describe the relationship between BMI and SBP.
c. Find the equation of regression line
d. Draw the regression line on your scatter diagram.
e. Estimate the value of BMI if the value of SPB is 120 mm Hg