The objective of a study is to understand the factors that are associated with systolic blood pressure in infants.Systolic blood pressure, weight (ounces) and age (days) are measured in 100 infants.A multiple linear regression is performed to predict blood pressure (mm Hg) from age and weight.The following results are presented in a journal article.

Multiple Linear Regression Analysis of the Predictors of Systolic Blood Pressure in Infants

How much higher would you expect the blood pressure to be of an infant who weighed 120 ounces compared to an infant who weighed 90 ounces if both infants were of exactly the same age?

a). 4mmHg

b). 5mmHg

c). 3 mmHg

d). 0.1 mmHg

Multiple Linear Regression Analysis of the Predictors of Systolic Blood Pressure in Infants Beta coefficient Standard error for beta coefficient (SE) Intercept 50 4 Birth weight 0.1 0.3 Age (days) 4 0.6