A Research Group Is Studying the Correlation Between BMI and Blood

question 40

Multiple Choice

A research group is studying the correlation between BMI and blood pressure in a random sample of children age 12-16.  After collecting data, they conduct a correlation analysis at a 1% significance level.  The researchers find that BMI correlates with systolic blood pressure with a coefficient of r = 0.46 (p <0.001) and diastolic blood pressure with a coefficient of r = 0.37 (p <0.001) .  Which of the following is the most accurate interpretation of these results?

• A)An increase in BMI causes a statistically significant increase in blood pressure in children
• B)Childhood obesity significantly increases the risk of cardiovascular disease later in life
• C)There is a statistically significant negative linear relationship between BMI and blood pressure in children
• D)There is a statistically significant positive linear relationship between BMI and blood pressure in children
• E)There is no statistically significant linear relationship between BMI and blood pressure in children

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