Use the Following to Answer the Question(s) Below

question 30

Multiple Choice

Use the following to answer the question(s) below.
A newly developed drug is tested to determine absorption levels in a patient's bloodstream. A patient is injected with the drug and the concentration (units/cc) in the patient's blood is measured every hour for seven hours. Below is the output from fitting a linear regression model.
-Which of the following is true?

• A) The linear model is appropriate for estimation of the concentration level after 10 hours given that it explains 90% of the variability in blood concentration levels of the drug.
• B) This model will underestimate the concentration level after 10 hours has elapsed because the linear model is not appropriate.
• C) This model will overestimate the concentration level after 10 hours has elapsed because the linear model is not appropriate.
• D) The linear model is appropriate for estimation of the concentration level after 10 hours given that it explains 9.49% of the variability in blood concentration levels of the drug.
• E) The linear model is appropriate given that it explains 90% of the variability in blood concentration levels of the drug, and it will overestimate the concentration level after 10 hours.

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Definitions:

Input

Data or signals received by a system, device, or program for processing.

Output

An output refers to the data or signals that are produced by a system or process, transferring information from the inside to the outside.

PLC Scans

The cyclic process by which a Programmable Logic Controller (PLC) reads input, executes logic, and updates output, forming the basis of its operating cycle.

Programming Bugs

Errors or flaws in a software program that can cause it to behave unexpectedly or lead to incorrect outcomes.