A Medical Researcher Is Interested in Assessing the Probability of Some

question 17

Multiple Choice

A medical researcher is interested in assessing the probability of some symptoms of coronary heart disease (CHD) being present at a given age.For this reason he uses the following data collected on 100 individuals. Thus,the variable under study is CHD that assumes a value of 1 if coronary heart disease is present,and a value of 0 otherwise.Using Excel and Minitab,the following linear and logistics regression equations have been estimated: Linear Regression: = - 0.53796 + 0.02181Age
Logistic Regression: Using the linear equation,find the age of a person for which the estimated chances of having coronary heart disease are 50%?

• A) 47.8 years old
• B) 56.3 years old
• C) 45.5 years old
• D) 47.6 years old

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Definitions:

Gestalt Psychology

The school of psychology that emphasizes the tendency to organize perceptions into wholes and to integrate separate stimuli into meaningful patterns.

Insight

The sudden realization of a problem's solution; often considered a key component in creativity.

Psycholinguistic Theory

A framework that studies how psychological factors, including cognition, emotion, and social relationships, influence language learning and use.

Language Acquisition

The process by which humans acquire the capacity to perceive, produce, and use words to understand and communicate.