A Local Tire Dealer Wants to Predict the Number of Tires

question 158

Multiple Choice

A local tire dealer wants to predict the number of tires sold each month. The dealer believes that the number of tires sold is a linear function of the amount of money invested in advertising. The dealer randomly selects 6 months of data consisting of tire sales (in thousands of tires) and advertising expenditures (in thousands of dollars) . Based on the data set with 6 observations, the simple linear regression model yielded the following results.
$$\sum x$$ = 24 $$\sum X ^ { 2 }$$ =124 $$\sum Y$$ =42 $$\sum Y ^ { 2 }$$ =338 $$\sum X Y$$ =196
-What is the value of the total sum of squares,or total variation?

• A)24
• B)28
• C)44
• D)16
• E)6

Understand the physiological basis of stress reduction techniques and their impact on the autonomic nervous system.

Recognize the importance of reinforcing patient education to manage chronic conditions under stress.

Initiate effective communication to explore and address patient stressors.

Understand and assess physiological indicators of stress.

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Definitions:

DSM-5

The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, a comprehensive classification of mental disorders published by the American Psychiatric Association.

Detachment

A state or process of being objectively disinterested or distanced from emotional involvement or personal interests.

Low Conscientiousness

A personality trait characterized by a lack of responsibility, organization, and reliability.

Personality Inventory

A questionnaire or other standardized instrument used to evaluate and measure personality traits and characteristics.