A Patient Is Injected with the Drug and the Concentration

question 13

Multiple Choice

A patient is injected with the drug and the concentration (units/cc) in the patient's blood is measured every hour for seven hours. Based on the linear regression output
Below, which of the following is true?
Regression Analysis:
The regression equation is
Concentration = 41.3 - 6.00 Time Elapsed
S = 4.72077 R-Sq = 90.0%
Concentration versus Time Elapsed

• A) The linear model is appropriate given that it explains 90% of the variability in Blood concentration levels of the drug.
• B) If the observed pattern continues into the future, this model will underestimate the Concentration level after 10 hours has elapsed because the linear model is not Appropriate.
• C) If the observed pattern continues into the future, this model will overestimate the Concentration level after 10 hours has elapsed because the linear model is not Appropriate.
• D) Both A and B.
• E) Both A and C.

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