It is determined that a positive linear association exists between amount of a new smokingcessation drug taken (in milliliters) and weight gain in women (in pounds). The scatterplot belowshows the association. The prediction equation is also given. A pharmacy technician uses the modelto predict the potential weight gain for a man who takes the recommended dosage. Choose the beststatement to summarize why this is not an appropriate use for the model.

A) This is an inappropriate use of the model because taking the smoking cessation drug does not cause weight gain. Correlation does not mean causation.
B) This is an inappropriate use of the model because a man would be an outlier in this context.
C) This is an inappropriate use of the model because the model was used to make predictions beyond the scope of the data. The Pharmecy Technician is extrapolating.

Question

It is determined that a positive linear association exists between amount of a new smokingcessation drug taken (in milliliters) and weight gain in women (in pounds) . The scatterplot belowshows the association. The prediction equation is also given. A pharmacy technician uses the modelto predict the potential weight gain for a man who takes the recommended dosage. Choose the beststatement to summarize why this is not an appropriate use for the model.

A) This is an inappropriate use of the model because taking the smoking cessation drug does not cause weight gain. Correlation does not mean causation.
B) This is an inappropriate use of the model because a man would be an outlier in this context.
C) This is an inappropriate use of the model because the model was used to make predictions beyond the scope of the data. The Pharmecy Technician is extrapolating.

Quizplus · Accepted Answer

The model was developed based on data from women, so using it to predict weight gain in men is extrapolating beyond the scope of the data.

It Is Determined That a Positive Linear Association Exists Between