Question 4: Full Model Search – 9 points For this question, use the unstandardized data (trainData). i. How many models can be constructed using subsets drawn from the full set of variables? (2 points) ii. Compare all possible models using Mallow’s Cp. Display the variables included in the best model and the corresponding Mallow’s Cp value. (2 points) iii. Use the selected variables from Q4aii to fit another multiple linear regression model, call it best_model. Display the model summary. (2 points) b. Compare the models (model1, model2, forward_model, best_model, both_model) using Adjusted R^2 and AIC. Which model is preferred based on this? (3 points)

Match the statements in regulatory provisions in A with their specific acts or guidelines in B

The following is true for optimization as a means for radiation protection         

Which of the following statements best describes the concept of non-maleficence?

You witness one of you colleagues taking a small machine from the stock room and putting it into his bag. When you ask him why, he says he was going to practice how to use it at home and ask you not to tell anyone. Considering your ethical responsibilities, what should you do and why.

According to which moral theory is the question, “What would a person of superior character do in a particular context”?

Competent refusal of treatment is when a health professional says treatment must stop

Which ethical principle supports the idea that healthcare resources should be distributed fairly and equitably?

What is the most important consideration for health professionals when using web-based Health systems to communicate with each other about patients, e.g., PACS?

If a person’s personal conduct is evaluated and judged in comparison to the standards of their profession, this is a judgment of behaviour.